6:06pm: The trade has now been announced, with Booser headed to Chicago in exchange for right-hander Yhoiker Fajardo. To make room for Booser on the club’s 40-man roster, the White Sox designated Corey Julks for assignment. Fajardo, 18, posted a 3.91 ERA in 13 starts during the Dominican Summer League this year. Julks, 28, hit .214/.275/.306 in 66 games with the White Sox this year.
4:01pm: The White Sox and Red Sox are in agreement on a deal that will send left-hander Cam Booser to Chicago, according to a report from Robert Murray of Fansided. The return headed to Boston in exchange for Booser’s services is not yet clear, though James Fegan of Sox Machine reports that a minor league player is the return and Chris Cotillo of MassLive further clarifies that the return is expected to be a minor league pitcher.
Booser, 33 in May, made his big league debut with the Red Sox back in April. After kicking off his professional career with the Twins in 2013, he climbed the minor league ladder but hit a wall in High-A during the 2017 season. He eventually resurfaced in independent ball in 2021 and bounced between indy ball and the minor leagues for the Diamondbacks until joining the Red Sox organization for the 2023 season.
Once he finally made his big league debut last year, he pitched quite well for the club with a 3.38 ERA in 42 2/3 innings of work with a 23.5% strikeout rate with an 8.7% walk rate. That was good for a solid 3.80 FIP, though an elevated 80% strand rate and a low 8.3% home-run-to-fly-ball ratio suggest the possibility of some regression in Booser’s profile as represented by a 3.92 SIERA and a 4.40 xFIP. Despite his somewhat questionable peripherals and an unusual path to the big leagues, however, Booser profiled as a quality middle relief option from the left side.
With Aroldis Chapman and Justin Wilson already added to the bullpen from the left side in Boston and Brennan Bernadino in the fold as a more established lefty option as well, Booser had become somewhat expendable for the Red Sox. That’s evidently led him to join the White Sox bullpen, where he joins former Yankees reliever Ron Marinaccio among external additions this winter. Booser figures to be much higher on the lefty relief depth chart in Chicago than he would’ve been in Boston, as he trades the competition of established veterans like Chapman and Wilson out for less established arms like Jared Shuster and Fraser Ellard.
