Justin Lawrence is a professional baseball pitcher for the Pittsburgh Pirates, recognized across Major League Baseball (MLB) for one of the most distinctive and unconventional delivery styles in the modern era. Standing 6’3” and weighing 211 pounds, the right-hander has transitioned from a volatile closer in the thin air of Colorado to a high-upside recovery project in Pittsburgh. As of the 2025 season, Lawrence represents a fascinating case study in how modern pitching analytics can identify undervalued assets through specialized movement profiles.

The Mechanics of a Sidearm Unicorn

In the world of professional baseball, "unique" is often an overused term, but for Justin Lawrence, it is a statistical reality. Lawrence utilizes a sidearm delivery that is colloquially referred to as a "unicorn" slot. During his freshman year at Jacksonville University, Lawrence was a traditional over-the-top thrower struggling to find playing time. The decision to drop his arm slot was born out of a necessity to survive in competitive baseball, yet it resulted in a velocity surge that few sidearmers ever achieve.

Statcast data provides a clearer picture of this rarity. Lawrence operates with an average arm angle of approximately -2 degrees. To put this in perspective, in the history of the Statcast era, only a handful of pitchers have managed to maintain an arm slot at or below 0 degrees while consistently hitting 95 mph on the radar gun. Most pitchers with such low release points are "submariners" who sacrifice velocity for deception and groundball rates. Lawrence, however, pairs that deceptive angle with elite heat, creating a horizontal plane of attack that is nightmare-inducing for right-handed hitters.

This low slot creates a "flat" approach angle. When Lawrence fires a 96 mph sinker from a -2 degree angle, the ball appears to be rising relative to the hitter’s expectations, even as it maintains heavy sinking action. This creates a high volume of "whiffs" and weak contact, provided he can command the strike zone—a hurdle that has defined much of his professional journey.

From Coors Field Struggles to the Steel City

The narrative of Justin Lawrence cannot be told without examining his tenure with the Colorado Rockies. Drafted in the 12th round in 2015, Lawrence spent years refining his control in the minor leagues. He made his MLB debut in April 2021, and by 2023, he had emerged as the Rockies' top relief option, recording 11 saves and a 3.72 ERA over 75 innings.

However, the "Coors Field Effect" eventually took its toll. Pitching at high altitude is notoriously difficult for "movement" pitchers. The thin air reduces the Magnus effect, meaning breaking balls like Lawrence’s signature sweeper do not "sweep" as much, and sinkers do not "sink" as sharply. By 2024, Lawrence’s performance plummeted, resulting in a 6.49 ERA and a struggle to find consistency.

On March 3, 2025, the Pittsburgh Pirates claimed Lawrence off waivers. For the Pirates, this was not a gamble on a struggling pitcher but a strategic acquisition of a specific "profile." The Pirates’ coaching staff, led by manager Derek Shelton, identified that Lawrence’s road splits were significantly better than his home numbers in Denver. In 2023, while he allowed an .827 OPS at Coors Field, he held opponents to a staggering .493 OPS everywhere else. The move to PNC Park, a more pitcher-friendly environment at sea level, was designed to unlock his full potential.

Analyzing the 2025 Season Performance and Injury

Justin Lawrence’s 2025 campaign with the Pittsburgh Pirates has been a rollercoaster of elite performance and physical setbacks. His debut for the club was nothing short of spectacular. Between late March and late April, Lawrence became a vital cog in the Pirates' late-inning bridge, posting a microscopic 0.79 ERA over his first 11 appearances.

The Impact of Right Elbow Inflammation

The momentum was halted on April 24, 2025, when Lawrence was placed on the 15-day injured list with right elbow inflammation. This was a significant blow to a Pirates bullpen that had begun to rely on his high-leverage stability. The injury was eventually escalated to the 60-day injured list in May, necessitating a long rehabilitation process.

Elbow injuries are a constant risk for sidearm pitchers due to the unique torque placed on the ulnar collateral ligament (UCL). Because Lawrence generates high velocity from such a low angle, the stress on the medial aspect of the elbow is distinct from traditional pitchers. His rehabilitation involved a stint with the Bradenton Marauders and the Indianapolis Indians, where he focused on regaining his command rather than just pure velocity.

The Late-Season Return

Lawrence was reinstated on September 12, 2025, and he returned with a vengeance. He did not allow a run in any of his final six outings of the year. He finished the 2025 regular season with a 0.51 ERA across 17 total appearances, striking out 23 batters in 17.2 innings with a WHIP of 0.96. Perhaps most impressively, he ended the year on a 16.2-inning scoreless streak, one of the longest in the National League during that span.

The Technical Arsenal: Sinker, Sweeper, and the Four-Seamer

The success Lawrence found in 2025 is attributed to a refined approach to his pitch mix. He is no longer just a "two-pitch" pitcher trying to survive; he is a specialist with a plan.

The Elite Sweeper

The centerpiece of Lawrence’s arsenal is the sweeper. In 2025, opponents struggled to even make contact with this pitch, which often features a spin rate exceeding 3,000 RPM. Because of his sidearm slot, the sweeper moves almost entirely on a horizontal plane, starting in the middle of the plate and ending in the opposite batter's box. In 2024, despite his overall struggles, hitters only batted .182 against the sweeper. In 2025, that number dropped even further as he learned to "tunnel" the pitch more effectively with his sinker.

The Power Sinker

Lawrence’s sinker is his primary weapon against right-handed hitters. Averaging 95-97 mph, the pitch generates an immense amount of groundballs. For a team like the Pirates, which emphasizes defensive positioning, a high-velocity sinker from a sidearm slot is a perfect fit. The pitch "mirrors" the sweeper’s initial trajectory, making it nearly impossible for a hitter to distinguish between the two until the ball is halfway to the plate.

The Developing Four-Seamer

Under the guidance of the Pirates' pitching department, Lawrence began experimenting with a four-seam fireball. While he remains a sinker-first pitcher, the four-seamer gives him a "vertical" weapon. By throwing the four-seamer at the top of the strike zone, he disrupts the hitter’s eye level, which is usually tuned to his low-stretching sinker and sweeper. This addition was a key factor in his increased strikeout rate (K/9) during the 2025 season.

Historical Context of Sidearm Pitching in MLB

To understand the value Justin Lawrence brings to the Pirates, one must look at the history of the sidearm delivery. Historically, sidearmers like Dan Quisenberry and Gene Garber were the backbone of bullpens in the 1970s and 80s. However, as the game moved toward an "overslot" obsession in the 90s and 2000s—focusing on downward plane and "tilt"—the sidearmer became a rare species.

Lawrence is part of a new wave of "power sidearmers." Unlike the soft-tossing specialists of the past, Lawrence proves that a low slot does not have to mean low velocity. He occupies a niche similar to that of Adam Cimber or Tyler Rogers, but with the added "swing-and-miss" capability provided by his 98 mph peak velocity. This makes him a flexible tool for a manager; he can be used to induce a double play in the 7th inning or to close out a game in the 9th.

Distinguishing the Name: Other Justin Lawrences

While the MLB pitcher is the most prominent figure associated with the name "Justin Lawrence" in current news cycles, there are two other notable professionals that often appear in search results.

  1. Justin Lawrence (Canadian Football): Born in 1996, this Justin Lawrence is a standout offensive lineman in the Canadian Football League (CFL). A three-time Grey Cup champion (2018, 2022, 2023), he has played for the Calgary Stampeders, Toronto Argonauts, and currently the Montreal Alouettes. He is recognized as a CFL East All-Star and is a key figure in Canadian professional football.
  2. Justin "The American Kidd" Lawrence (MMA): A former professional mixed martial artist who competed in the Featherweight division. Lawrence gained fame as a contestant on The Ultimate Fighter: Live and fought in the UFC, Strikeforce, and Bellator. He was known for his high-level kickboxing background before retiring from the sport in 2018.

What to Expect from Justin Lawrence in 2026

Following his dominant end to the 2025 season, the Pirates view Justin Lawrence as a cornerstone of their relief corps for 2026. The primary focus for the offseason will be maintaining the health of his right elbow. If Lawrence can avoid the injured list, he has the peripheral numbers—high strikeout rates, elite groundball induction, and unique deception—to be considered one of the best relievers in the National League.

His journey from a waiver wire claim to a high-leverage "unicorn" is a testament to the importance of "fit" in professional sports. For Justin Lawrence, the move away from the high altitude of Colorado to the riverfront of Pittsburgh wasn't just a change of scenery; it was the catalyst for a career resurgence.

FAQ: Frequently Asked Questions about Justin Lawrence

What is Justin Lawrence's pitch velocity?

Justin Lawrence typically sits between 95 and 97 mph with his sinker and four-seam fastball. He has the ability to reach 98-99 mph in short relief appearances.

Why is his pitching style called a "Unicorn" slot?

It is called a "unicorn" slot because very few pitchers in MLB history can throw at high velocities (95+ mph) from a sidearm or sub-zero degree arm angle. His release point is roughly -2 degrees, which is extremely rare for a power pitcher.

Which MLB team does Justin Lawrence play for?

As of the 2025 and 2026 seasons, Justin Lawrence plays for the Pittsburgh Pirates. He was previously a member of the Colorado Rockies.

Is Justin Lawrence still injured?

Lawrence spent a significant portion of the 2025 season on the 60-day injured list due to right elbow inflammation. However, he was reinstated in September 2025 and finished the season healthy and active.

How many Grey Cups has Justin Lawrence won?

The Justin Lawrence who plays Canadian Football (CFL) has won three Grey Cups (2018, 2022, 2023). The MLB pitcher of the same name does not play football.

Summary

Justin Lawrence has established himself as one of the most intriguing relief pitchers in Major League Baseball. His transition to the Pittsburgh Pirates in 2025 proved that his unique sidearm delivery is an elite asset when utilized in the right environment. Despite a mid-season elbow injury, his dominant return in September—highlighted by a scoreless streak and improved command of his sweeper—sets the stage for a potentially career-defining 2026 season. Whether inducing weak groundballs with his heavy sinker or baffling hitters with his high-spin sweeper, Lawrence remains a "unicorn" that every baseball fan should watch.