Foster was called up to serve as the 29th man for Thursday's doubleheader against Cleveland, Vinnie Duber of NBC Sports Chicago reports.

EDGE Analysis

Foster gives the team an additional bullpen option. He hasn't been good in 35.2 major-league innings this season, struggling to a 6.06 ERA, so he'll likely be limited to lower-leverage situations.

Foster was optioned to Triple-A Charlotte on Monday.

EDGE Analysis

Foster had been in the big-league bullpen since Wednesday. Both his appearances in his latest stint in the majors went poorly, as he allowed three runs on five hits over 2.1 innings of work. Jimmy Lambert was called up to take his place on the roster.

The White Sox recalled Foster from Triple-A Charlotte on Wednesday.

EDGE Analysis

With Reynaldo Lopez expected to move into the rotation following Lance Lynn's (knee) placement on the injured list Tuesday, Foster will help restore some depth in the bullpen. Foster has found limited success over his 31 appearances with the big club this season, churning out a 5.67 ERA and 1.41 WHIP in 33.1 innings.

The White Sox optioned Foster to Triple-A Charlotte on Monday.

EDGE Analysis

Foster worked an inning out of the bullpen in both of the past two days and wasn't likely to be available for Monday's series opener versus Oakland, so Chicago will swap him off the active roster for a fresh relief arm in right-hander Ryan Burr, who was recalled from Charlotte. The 26-year-old Foster has mostly worked in middle relief this season, compiling a 5.67 ERA in 33.1 innings across 31 appearances.

Foster was recalled from Triple-A Charlotte on Wednesday.

EDGE Analysis

Foster returned to the minors Friday, but he'll return to the major-league club after Carlos Rodon (shoulder) was placed on the 10-day injured list. The right-hander has made 28 relief appearances for the White Sox this year, and he's posted a 5.64 ERA and 1.38 WHIP in 30.1 innings.

Foster was optioned to Triple-A Charlotte on Friday.

EDGE Analysis

The right-hander was promoted to the majors on Tuesday and delivered two scoreless frames in his lone appearance before being sent back down. Overall Foster has a 5.64 ERA, 1.38 WHIP and 33:10 K:BB over 30.1 innings for the White Sox this season.

The White Sox recalled Foster from Triple-A Charlotte on Tuesday.

EDGE Analysis

Foster will fill the spot on the White Sox's 26-man active roster that opened up when Jimmy Lambert was optioned to Triple-A on Monday. Through 27 appearances out of the Chicago bullpen this season, Foster has delivered a 6.04 ERA and 1.45 WHIP.

Foster was returned to Triple-A Charlotte following Monday's doubleheader against the Twins. He allowed one run on two hits and struck out one over two innings in Game 2.

EDGE Analysis

Foster was brought up for the twin bill as the 27th man, and after firing 20 pitches Monday night, he'll go right back down to the minors.

Foster was recalled to serve as the 27th man for Monday's doubleheader against the Twins.

EDGE Analysis

Foster has struggled to a 6.15 ERA in 26.1 innings at the big-league level this season. His 26.9 percent strikeout rate and 7.6 percent walk rate are both better than average, but his very low 26.7 percent groundball rate has led to an inflated 2.4 HR/9. He'll likely be limited to low-leverage opportunities during his time with the team, which might only last one day if he's sent down following the doubleheader.

Foster was optioned to Triple-A Charlotte on Friday, James Fegan of The Athletic reports.

EDGE Analysis

The right-hander impressed as a rookie last year with a 2.20 ERA, 0.87 WHIP and 31:9 K:BB across 28.2 innings, but he's struggled to find that form in 2021. Foster has a 6.15 ERA this season and will head to Triple-A in an attempt to straighten things out.