Joseph Rock: Everything you need to know

The White Sox recalled Rock from Triple-A Charlotte on Tuesday. The left-hander was acquired from the Rays in exchange for Oliver Dunn in mid-May and is now on the cusp of his White Sox debut. Rock hasn't been particularly effective at the Triple-A level this year with a 4.88 ERA, 1.79 WHIP and 40:21 K:BB across 24 innings between the two organizations.

The Rays traded Rock to the White Sox on Tuesday in exchange for Oliver Dunn. Rock has spent the entire season with the Rays' Triple-A affiliate, posting a 4.80 ERA and 1.93 WHIP alongside a 27:17 K:BB through 15 innings. He'll report to Triple-A Charlotte to begin his time in the White Sox organization, but the fact that he owns a spot on the 40-man roster will help his chances of returning to the majors later in the year when the Sox need fresh bullpen depth. Kyle Teel (knee) was transferred to the 60-day injured list in a corresponding move.

The Rays optioned Rock to Triple-A Durham on Sunday. He'll give up his spot on the 26-man active roster to right-hander Drew Rasmussen (personal), who was activated from the family medical emergency list ahead of his scheduled start Sunday against the Yankees. After being recalled from Triple-A on Friday, Rock didn't make any appearances out of the Tampa Bay bullpen over the first two games of the series with New York.