The Mariners announced this morning that they’ve designated right-hander Casey Lawrence for assignment. Right-hander Sauryn Lao was selected to the roster to replace Lawrence on the 40-man and active rosters.
Lawrence, 37, is a journeyman who has pitched in parts of five MLB seasons. After signing with the Blue Jays as an undrafted free agent back in 2010, the right-hander spent years climbing up the minor league ladder before finally reaching the majors during the 2017 season. He struggled to a 6.64 ERA with a 5.08 FIP in 78 2/3 innings of work for the Jays and Mariners over the next two years before heading overseas to pitch for Nippon Professional Baseball’s Hiroshima Carp in 2019. Lawrence posted a 4.80 ERA in 110 2/3 innings of work for the Carp and did not pitch professionally during the 2020 season.
He resurfaced in Toronto during the 2021 season and has oscillated between the majors and Triple-A in the years since then, with a 6.62 ERA and 6.12 FIP across 50 1/3 innings between the Blue Jays, Cardinals, and Mariners. His most recent stint in Seattle has seen the right-hander post five innings of three-run (two earned) ball, though he’s failed to strike out any of the 20 batters he’s faced. The Mariners will have one week to work out a trade involving Lawrence or pass him through waivers, and if he goes unclaimed he’ll have the option to either accept and outright assignment back to the minor leagues or elect free agency in search of a better deal elsewhere.
Lawrence’s departure makes room for Lao on the active and 40-man rosters. Signed by the Dodgers out of the Dominican Republic back in 2016, Lao was initially signed as a corner infielder but converted to pitching after struggling to hit at the High-A level. He made his first pitching appearances in 2023 and looked good enough to reach the Double-A level, and last year dominated Double-A to the tune of a 1.90 ERA in 20 relief appearances before getting promoted to Triple-A. The inflated offensive environment of the Pacific Coast League was not kind to Lao, as he surrendered a 5.22 ERA in 29 1/3 innings of work. That was his last work in a Dodgers uniform, as he elected minor league free agency and signed with Seattle.
He’s made three abbreviated starts for Seattle so far at Triple-A, and looked good in doing so with a 2.00 ERA and a 21.2% strikeout rate against a walk rate of just 3%. Lao figures to serve as a long man for the Seattle bullpen, offering bulk relief to the club now that Lawrence is off the roster and Emerson Hancock has taken up a rotation job. Lao figures to be especially important for the Mariners in the coming days after the club went 12 innings against the Blue Jays last night, only five of which were handled by starter Logan Gilbert.