Hold That Tiger: Kevin McGonigle Gets a Record-Setting Extension

Konnor Griffin isn’t the only rookie infielder to land a nine-figure extension within his first few weeks in the majors. On Wednesday, the Tigers reached an agreement with Kevin McGonigle — who made the jump from Double-A into Detroit’s Opening Day lineup and has been the team’s top hitter thus far — on an eight-year, $150 million extension for the 2027–34 seasons. The contract slightly surpasses the value of Griffin’s deal, making it the largest guarantee to a player with fewer than 100 days of major league service time, even before its other bells and whistles are considered.

According to MLB.com, McGonigle will receive a signing bonus of $14 million, $8 million of which is payable within 30 days and the rest in 2028. He’ll then earn $1 million next season, $7 million in 2028 (when he would have qualified for Super-Two status), $16 million in ’29, $21 million in ’30, $22 million in ’31, and then $23 million annually from ’32–34, which would have been his first three years of free-agent eligibility. Escalator clauses can increase the values of the deal by an additional $10 million, with higher salaries for those last three seasons of $25 million (2032), $26 million (2033), and $28 million (2034).

Those escalators are based on MVP voting and other honors, and can be triggered starting this season, per ESPN. McGonigle could get boosts of $2 million for winning an MVP award, $1 million for finishing second through fifth in MVP voting, and $500,000 for finishing sixth through 10th; he’ll also get $500,000 for making the All-MLB first or second team, $250,000 for making an All-Star team, and $250,000 for winning a Silver Slugger award. His contract has no options or opt-out clauses, but additionally includes a $5 million assignment bonus for every time he’s traded to another organization under the life of the contract.

By comparison, Griffin’s nine-year, $140 million contract covers this season, so it also runs through 2034. It includes a $12 million signing bonus, $10 million in escalator clauses, and limited no-trade protection. The deals of both McGonigle and Griffin fall short of the $210 million extension Julio Rodríguez signed in 2022, the largest for a player with less than one year of service time, but as MLB Trade Rumors pointed out, by the time Rodríguez inked that deal, he’d made his first All-Star team and was well on his way to winning AL Rookie of the Year. In the McGonigle/Griffin comparison, it’s worth noting that while the latter’s deal is uncharted territory for the Pirates, the Tigers are no strangers to writing big checks, though the deals for Miguel Cabrera, Justin Verlander, and Prince Fielder — the three largest in team history ahead of McGonigle — went to much more established players.

The Tigers drafted McGonigle out of Monsignor Bonner and Archbishop Prendergast High School in Drexel Hill, Pennsylvania with the 37th pick in 2023, a Competitive Balance A pick. He rocketed through the minors even while battling injuries, not playing more than 60 games at a single stop in a season. Last year, in six games at A-level Lakeland (on a rehab assignment following a month lost to a right ankle sprain), 36 at High-A West Michigan, and 46 at Double-A Erie, he hit a combined .305/.408/.583 (182 wRC+) with 19 homers and 10 steals while showing off what our prospect team suggested might be the best hit tool in all of the minors; he struck out in just 11.6% of his plate appearances while walking in 14.9%. He capped that stellar season by hitting an ungodly .362/.500/.710 in the Arizona Fall League.

The 21-year-old McGonigle placed fifth in our preseason Top 100 Prospects list as a 60-FV lefty-swinging prospect, with our prospect team describing him as “[s]hort-levered with plus bat speed, elite hand-eye coordination, and a great approach… the total package at the plate.” The only real knock on him is a questionable future at shortstop, as he’s stretched there defensively. The 5-foot-9 — he lost an inch in the official ABS measurements — 187-pounder is a bit light when it comes to his arm strength and range, and he lacks some projection on the defensive side due to his stocky frame. So far, he’s split time with Javier Báez at shortstop (11 games, eight starts), and Colt Keith and Zach McKinstry at third (10 games, nine starts). While he has 28 games of minor league experience at second base, he has yet to play the position in the majors, but with Gleyber Torres signed only through this season, that’s a long-term possibility, as well. Regardless of where McGonigle plays, the scouting reports and statistical profile both suggest a middle-of-the-order presence and a foundational player for an organization.

Given his lack of upper-level experience, McGonigle was hardly a lock to make the Tigers out of spring training, but he showed he was ready for the majors both at the plate and in the field, and so he broke camp with the big club. On Opening Day, he raked a two-run double on the first pitch he saw from the Padres’ Nick Pivetta, added another double off Pivetta in his next plate appearance, and ended up going 4-for-5. As colleague Michael Baumann pointed out, that made him the 25th player to record four hits in his major league debut.

The next day, McGonigle collected a go-ahead two-run single off San Diego’s Wandy Peralta in the eighth inning. He hit his first homer, off the Marlins’ Sandy Alcantara, this past Sunday as part of a 3-for-4 day with a walk.

McGonigle isn’t hitting .800 anymore, but his .313/.421/.484 (162 wRC+) line reflects exceptional strike zone judgment (23.8% chase rate) and minimal swing-and-miss (87.9% contact rate, 5.0% swinging strike rate). Again, he’s walking more often than he’s striking out (rates of 15.8% and 13.2%, respectively). His 88.2-mph average exit velocity, 9.3% barrel rate, and 37% hard-hit rate thus far are less impressive, but his actual stats match up with his expected stats (.296 xBA, .546 xSLG) well enough to suggest he’s on the right track.

“We do this for a living — we study young hitters and their adjustment period to the big leagues,” said president of baseball operations Scott Harris at the press conference to announce McGonigle’s contract. “Some of the best players in baseball right now really struggled for their first 150 plate appearances, and clearly, he hasn’t. It speaks to the quality of the skill set, the talent and the human being. I can’t remember being as impressed with anyone through the first — what is it? — 17 games.”

In his brief time in the majors, McGonigle’s plate discipline and contact rate have given his ZiPS projection a bit of extra zip, according to colleague Dan Szymborski. It’s a pretty darn good-looking projection, with a sustained peak above five wins per year:

The ZiPS contract suggestion for that is eight years and $192 million, even given the arbitration discounts. By comparison, the system projected eight years and $142 million for Griffin, though since his extension does cover 2026, that’s not apples-to-apples; as Szymborski noted in his coverage of Griffin’s extension, his ninth year (also 2034) projects to be worth another $40 million, so again, the two are very close — roughly a difference of one run per year — over that timespan. “Griffin and McGonigle are literally just about the best prospect projections since Mike Trout,” Szymborksi told me while providing the numbers. “It’s hard for ZiPS to be this nice.” He then sent along another table of the top single-season projections for hitters 22 and under to place the numbers for McGonigle and Griffin in perspective:

The two highlighted lines for McGonigle reflect his raw projection for 406 plate appearances (an amount suppressed by his playing just 88 games last year and 74 in 2024 due to a fractured right hamate) and then a Depth Charts adjustment to 546 plate appearances. The other projections, including those of Griffin (who played 122 games last year), are raw ones, without playing time adjustments.

Not every player above panned out to the same degree — a few of those names read like cautionary tales, including those of teammate Torkelson (sigh) — but it’s worth noting that McGonigle’s 2027 projection for 4.3 WAR at age 22 would rank just below Trout, and the same is true for Griffin. Ahem.

Anyway, that’s a lot to get excited about. Less exciting thus far has been the Detroit offense. The Tigers are off to just a 9-9 start while averaging a middling 4.11 runs per game (eighth in the AL) and batting a combined .237/.322/.365; both their slugging percentage and 99 wRC+ also rank eighth in the league, while their on-base percentage is sixth. The lack of power is disconcerting, but some of that might owe to cooler early-season temperatures; the major league-wide slugging percentage of .383 is down one point from last year through the first three weeks of the season, though that mark rose 20 points, to .404, by season’s end. Of more concern is the fact that aside from McGonigle, just three other Tigers regulars have a wRC+ of 100 or better, namely Dillon Dingler (148), Keith (121), and Báez (116), with Torres, Torkelson, Greene, and Kerry Carpenter all in the 90s, and part-timers McKinstry, Matt Vierling, and the now-injured Parker Meadows notably worse in smaller samples.

Still, thanks to a pitching staff allowing a league-low 3.44 runs per game, the Tigers are just 1 1/2 games behind the Twins (11-8) and half a game behind the Guardians (10-8). It’s a bit early to start fretting, and in the big picture, the team now has one of its cornerstones in place for a long time.