Matthew Boyd David Kohl-USA TODAY Sports

The Mariners are set to acquire left-hander Matthew Boyd in a trade with the Giants, reports Jon Heyman of the New York Post (Twitter link). He’s currently on the injured list and has spent the entire season to date rehabbing from September surgery to repair a torn flexor tendon, but Boyd makes for an interesting roll of the dice and could give the M’s a quality arm late in the season if he’s able to return from that surgery.

Boyd, 31, inked a one-year, $5.2M deal with the Giants after a mostly solid four-year run with the Tigers. A brutal showing in 2020 skewed his numbers in his final few seasons with Detroit, but Boyd often flashed quality bat-missing ability and typically posted low walk rates throughout his time in the Detroit rotation. He twice looked as though he may be among the more appealing arms available at a trade deadline — first in 2019 when he was sitting on a 3.95 ERA and 152 strikeouts in 114 innings and again in 2021 when he’d posted a similar ERA and reduced home-run rate (albeit with a diminished strikeout rate).

The Tigers held on to Boyd both times, however, declining to move him in ’19 because they (justifiably) set a huge asking price given Boyd’s three-plus remaining seasons of club control. The 2020 season brought little opportunity to move Boyd, thanks to the aforementioned struggles (6.71 ERA in 12 starts), and by the time last year’s deadline rolled around, Boyd’s season was in jeopardy due to that forearm issue.

It’s unlikely that Boyd will be able to return and build up to a starter’s workload this season — but the Mariners, particularly after landing Reds ace Luis Castillo, don’t really need Boyd to step into the rotation anyhow. He could, however, provide them with an experienced left-hander to plug into the bullpen. Seattle hasn’t had much luck with its left-handed bullpen arms this season, so taking what’s surely a low-cost flier on Boyd is a sensible enough peripheral move at this stage of deadline season.

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