TORONTO -- Dayan Viciedo left Thursday's contest against the Blue Jays in the eighth inning with a left oblique strain.
The left fielder was forced to leave the contest after feeling some discomfort following a swing at a 1-0 offering from Blue Jays reliever Aaron Loup.
"As soon as he swings, he kind of went down on a knee, you know something is up," manager Robin Ventura said. "You know you weren't going to let him swing after that."
Viciedo will be re-evaluated in Chicago on Friday, but he doesn't believe the injury will require him to be placed on the disabled list.
"I don't think so," he said through interpreter Lino Diaz. "I don't think it's that bad."
Viciedo recorded one of Chicago's two hits off Blue Jays starter R.A. Dickey in a 3-1 loss.
Wise gets start as De Aza takes day off on turf
TORONTO -- Dewayne Wise led off and started in center field in place of Alejandro De Aza for Thursday's series finale against the Blue Jays.
De Aza, who is batting .230 with three homers and eight RBIs, will be available as a pinch-hitter or a late-game substitution, if needed.
"Just giving De Aza a day off on the turf," manager Robin Ventura said. "He'll be ready to go tomorrow or at some point today if we need him."
Wise has started just one game this season, in which he went 0-for-4 against the Mariners, but will be given a shot to produce against his former team.
The 35-year-old journeyman broke into the big leagues with the Blue Jays in 2000 and has played for the organization on three separate occasions, most recently in '11.
Wise has recorded two hits in nine at-bats this season, a year after hitting .259 with eight homers, 30 RBIs, 19 stolen bases and a .721 OPS over 101 games split between the White Sox and Yankees.
Pitching coach Cooper set to rejoin White Sox
TORONTO -- Pitching coach Don Cooper will rejoin the White Sox in Chicago on Saturday for the delayed start of a homestand that begins with a series against the Twins.
Cooper was hospitalized in the Washington, D.C., area on April 9 with diverticulitis and returned to Chicago on Saturday. Friday's game against the Twins was postponed due to cold and windy conditions.
The team is eager for his return to the dugout, where he spent 11 of his 26 seasons with the organization as pitching coach.
"We are looking forward to having Cooper back," manager Robin Ventura said. "It's odd him not being here. I'm just glad he's feeling better. It's going to be nice to have him back."
During Cooper's absence, bullpen coach Bobby Thigpen filled in as the team's pitching coach, while Curt Hasler, the organization's pitching coordinator, has served as the bullpen coach.
Hasler's last game with the team was Thursday's series finale against the Blue Jays and as much as he has enjoyed his time with the big club, he said it doesn't feel right with Cooper not around.
Ventura agrees, although he's pleased with the job Hasler and Thigpen have done.
"It's different. Bobby has filled in and done a great job," Ventura said. "Again, it's different not having Cooper there -- the conversations you are use to having in the middle of the game. Definitely looking forward to him getting back with us."
• Paul Konerko will see some time at first base after starting all four games against the Blue Jays as the team's designated hitter, with Adam Dunn manning the corner position.
"I just didn't want Paul on the turf," manager Robin Ventura said. "It just seems to create problems every time guys get on the turf."
Konerko has started the last seven games at DH, including three against Cleveland before the White Sox traveled to Toronto.
Chris Toman is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.