12:59 PM - John Brebbia (CHW) (calf) will begin a rehab assignment with Triple-A Charlotte on Friday, LaMond Pope of the Chicago Tribune reports.

1:18 PM - John Brebbia (CHW) was placed on the 15-day injured list Monday with a left calf strain, retroactive to April 6.

6:02 AM - John Brebbia (CHW) pitched a perfect ninth inning in Saturday's 7-6 extra-inning loss to the Tigers.

4:13 PM - John Brebbia (CHW) (calf) went through fielding drills Wednesday, Daryl Van Schouwen of the Chicago Sun-Times reports.

12:00 PM - John Brebbia (CHW) (calf) is scheduled to make a relief appearance Monday in a game at minor-league camp, Daryl Van Schouwen of the Chicago Sun-Times reports.

2:32 PM - John Brebbia (CHW) (calf) will face hitters again Friday, Daryl Van Schouwen of the Chicago Sun-Times reports.

12:33 PM - John Brebbia (CHW) (calf) is scheduled to face hitters in live batting practice Wednesday, Daryl Van Schouwen of the Chicago Sun-Times reports.

9:37 AM - John Brebbia (CHW) (calf) is scheduled to throw a bullpen session Thursday, Daryl Van Schouwen of the Chicago Sun-Times reports.

3:07 PM - John Brebbia (CHW) (calf) has been fitted with a walking boot and is getting around on a scooter, Vinnie Duber of AllCHGO.com reports.

3:35 PM - John Brebbia (CHW) suffered a right calf strain while throwing a live batting practice session Wednesday, Vinnie Duber of AllCHGO.com reports.

10:10 AM - John Brebbia (CHW) signed a one-year contract with the White Sox on Saturday, Jon Morosi of MLB Network reports.