The Pirates are going to trade left-hander Joe La Sorsa to the Red Sox, reports Ari Alexander of 7News Boston. The Bucs will get cash in return, per Alex Speier of The Boston Globe. It was reported a few days ago that the southpaw was triggering an upward mobility clause in his minor league deal. Alexander says that La Sorsa will be with the Sox in New York tomorrow as they kick off a series against the Yankees. Boston will need to open a 40-man roster spot for La Sorsa.

La Sorsa, 28, will be appearing in his fourth straight major league season once he gets into a game with the Sox. From 2023 to 2025, he pitched for the Rays, Nationals and Reds, posting a 5.21 earned run average in 57 innings.

He signed a minor league deal with the Pirates in the offseason and has been pitching for Triple-A Indianapolis. He has thrown 26 innings with a 3.46 ERA. His 21.2% strikeout rate is around average while his 5.8% walk rate and 47.9% ground ball rate a few ticks better than par.

The lefty triggered an upward mobility clause in his deal at the end of spring training. The way such clauses work is that the player must be offered to the 29 others teams in the league. If any of them want to give the player a roster spot, the signing team has to either trade him or give him a roster spot themselves. If they all pass, he will stay with the signing team. La Sorsa stayed with the Bucs in late March, suggesting all clubs passed on him at that time. In this case, the Sox have signed up.

Boston has three lefties in the bullpen, though Aroldis Chapman is the closer. That leaves Jovani Morán and Danny Coulombe as the lefty options for situations before the ninth inning. Coulombe spent about three weeks on the injured list due to cervical spasms and has a 6.55 ERA around that IL stint. Morán has a much better 3.19 ERA but has gotten some help from a fortunate .197 batting average on balls in play and 85.2% strand rate. La Sorsa will give the Sox another option in the southpaw relief corps.

The Sox don’t have a lot of flexibility in their current bullpen mix. Of their eight relief arms, only Justin Slaten and Greg Weissert are optionable, but those are two of their two setup arms. La Sorsa himself is optionable but, as mentioned, he is expected to be with the big league club in the Bronx tomorrow. Perhaps Coulombe will be designated for assignment, as that would open up a spot on both the active and 40-man rosters for La Sorsa. Other options for that kind of move would be Tyron Guerrero and Ryan Watson, who both have ERAs north of 5.00 at the moment.

Photo courtesy of Thomas Shea, Imagn Images

View Comments (25)