Top Landing Spots for Free Agent Foster Griffin

Free agent left-handed pitcher Foster Griffin enters the market a much different arm than he was a year ago at this time. The 2026 campaign was his first full season in Major League Baseball, and he posted a good one.

His pathway to MLB free agency is unique in the sense that we don’t see it terribly often. After a couple of seasons going up and down from the big leagues, he spent 2023 through 2025 in Japan’s Nippon Professional Baseball. Though he found immediate success overseas, it wasn’t until his final season that he put it all together. It was only 14 appearances, but he had a sub-two ERA.

That landed him a shiny new opportunity with the Washington Nationals and, eventually, the American League runner-up Cleveland Guardians. Though he wasn’t as dominant as he was in Japan, he proved he can handle MLB lineups; so much so that he made the All-Star team as an official rookie.

Griffin isn’t the top southpaw on the market this winter, as that honor is held by Tarik Skubal. That said, he’s still near the top and likely to have several suitors.

Free Agent Profile: Foster Griffin

• Age in 2027: 31 (32 on July 27)

• 2026 Stats: 31 G (31 GS), 3.60 ERA, 3.96 FIP, 2.6 fWAR

• 2026 Salary: $5.5 million

• Qualifying Offer Eligible?: No

Contract Projection

• Contract Length Expectation: 2-4 years

• Expected AAV: $11-16 million

The 2026 season was a great step in Griffin establishing himself as a big league contributor. Even though his ERA after getting to Cleveland spiked to 5.19, he was one of their best arms in the postseason.

Teams will have to weigh a couple of factors when pursuing him. For starters, his age. At 31, he’s in that grey area on length teams are willing to commit. Second, he’s only got the one year of track record in MLB. Regardless, he’s at worst a markedly solid mid-rotation arm.

Free Agent Landing Spots for Foster Griffin

Detroit Tigers

The Tigers had the fourth-best starting pitching rotation this season, but overall underwhelmed as a team. Furthermore, 32 starts went to Skubal and Casey Mize, both of whom had sub-three ERAs but were traded midseason and are now free agents.

Young right-hander Troy Melton took a major step forward and became the team’s de facto ace. The Tigers also got key contributions from Keider Montero and nine starts from Jackson Jobe.

Adding a starter could be viewed as a luxury this winter for Detroit, but that’s somewhat contingent on what’s to expect from Framber Valdez going forward. He was overall fine in 2026, but fine is not what the Tigers paid him to be. Griffin would shore up the middle-to-end of the rotation, elevating the floor and providing a bit more institutional knowledge as a professional.

The Tigers’ primary goal should be adding offense this winter, but adding another capable arm would go a long way.

Cleveland Guardians

It was almost a tale of two seasons for Griffin in Cleveland this season. He made nine starts, but two of them were major blowups. He did, however, emerge as vital in the playoffs. In three appearances, he allowed four earned runs across 10.1 innings, striking out 15.

Cleveland needed a starter last deadline when it acquired Griffin. They turned to him multiple times for bulk in the playoffs as well. The fit makes a ton of sense, especially since he’ll fall into the middle market this winter in terms of contract years and salary.

The Guardians still need someone like Tanner Bibee to get back on track to elevate their staff. But between Parker Messick and Gavin Williams, they’re strong at the top.

St. Louis Cardinals

The Cardinals hung around much of last season but fell off, especially in the second half, finishing the season 77-85. They were fairly average across the board; 44-45 against teams above .500, 38-43 at home, 39-42 on the road.

They also had a -29 run differential despite being middle of the pack in runs scored.

Their overall rotation ERA was 12th in baseball, but their lefty starters posted an ERA of 5.00 across 41 starts and 205.1 innings.

Quinn Mathews had a 3.83 ERA in his nine starts, but Matthew Liberatore posted a 5.23 across 31 starts. The Cardinals, positioned in a division with the World Series champions, have to find a way to stay competitive. Finding a way to beat teams from both sides of the rubber is paramount. Adding a quality arm like Griffin would help stabilize the rotation and allow for the lineup to shine with less pressure.

Los Angeles Angels

After the All-Star break, the Angels tied for the third-best rotation ERA in the league. This was largely due to lefty Reid Detmers and the breakout of right-hander Walbert Ureña. However, there were reports the Angels were open to moving Detmers at the 2026 trade deadline.

Though they held onto him, oftentimes teams that float players during the summer end up revisiting those talks during the winter. Even if Detmers sticks around, the Angels certainly have some work to do to improve their roster. Having not made the postseason since 2014, Los Angeles should pull no punches in adding talent to its roster.

Griffin would fit right in around Ureña, Detmers, Ryan Johnson, and veteran lefty Yusei Kikuchi. He’s an effective starter who can spin the ball well and is deceptive. He even tapped a little more into the strikeout stuff in a small sample this postseason.

The job doesn’t end with shoring up the rotation, but improving the rotation would create a trickle-down effect on the rest of the roster.

New York Mets

The Mets have tried the flashy route time and time again over the years to address roster needs. This process has yielded mixed results. There’s nothing wrong with whipping out the checkbook to address holes on the team. It is, however, problematic to create a top-heavy roster by pursuing players that aren’t even at your greatest need.

The Mets, this winter, need a southpaw. Reportedly, they’re meeting with Skubal. That makes sense, as the rotation is a major area of need for the Mets, as is getting another southpaw. Zac Thornton did a strong job across 15 starts, but adding another top arm to pair with right-hander Nolan McLean would go a long way.

If they can’t land Skubal, that doesn’t mean they should throw in the towel on adding a left-hander. Griffin would allow the Mets to allocate financial resources to other areas of the roster while also adding a productive piece to their rotation.