Seattle Mariners Re-Sign 37-Year-Old Right-Hand Pitcher To Minor League Deal

The Mariners and right-hander Casey Lawrence have reunited on a minor league deal, per his transactions tracker at MLB.com. The Big League Management Company client will presumably receive an invite to major league spring training in a few months.

Lawrence, 37, signed a minor league deal with the M’s going into last year as well. He provided the club with some non-roster depth, making 29 starts and logging 165 Triple-A innings with a 5.95 earned run average in the hitter-friendly Pacific Coast League. His 14.9% strikeout rate was subpar but his 6.6% walk rate was strong and he got grounders at a solid 44.1% clip.

That’s wasn’t enough to get Lawrence called to the major leagues, so he reached minor league free agency recently, but he’ll now return to the M’s and give them an experienced depth arm. Lawrence has pitched in parts of four different major league seasons, suiting up for the Blue Jays, Mariners and Cardinals. In that time, he has a 6.75 ERA in 124 innings.

The Mariners have a strong rotation if everyone is healthy, though that’s not something a club can count on. Luis Castillo, George Kirby, Logan Gilbert and Bryce Miller each made at least 30 starts in 2024 with no one in that group having an ERA higher than 3.64. Bryan Woo had some injuries but still managed to give the club 22 starts with a 2.89 ERA.

The M’s also have Emerson Hancock on hand, though his upper-level results haven’t inspired much confidence. He has just a 16.7% strikeout rate at the Triple-A level and just a 14.3% clip against major league hitters. Jhonathan Díaz and Blas Castano are also on the 40-man roster but Díaz has just 45 major league innings under his belt while Castano has none.

In short, while the M’s do have a strong rotation, the options beyond the top five aren’t as impressive. While many fans of rival clubs have speculated about plucking a starter from Seattle, president of baseball operations Jerry Dipoto recently referred to that as the club’s “Plan Z“, perhaps a reflection of the thin depth. Less injury luck in 2025 could make that an issue as the season goes along, but Lawrence will give them another arm to potentially call upon.