Barnes is 5-2 with 23 saves and a 2.30 ERA, but hadn't pitched since a save against the Toronto Blue Jays on July 28. The right-hander was put into quarantine after showing symptoms at the team's hotel in Detroit.
Manager Alex Cora said Barnes is expected back on Wednesday.
Marwin González returned to the active roster after being out since July 13 with a hamstring strain. He is hitting .205 while starting at all four infield positions, as well as left and right field.
Atlanta Braves shortstop Dansby Swanson and USWNT soccer player Mallory Pugh announce their engagement
Swanson earned a ring with a World Series win last month. Pugh got a ring this month. The two world champions announced their engagement and add to a star-studded list of power couples associated with the U.S. women's national team.
Time to put Minnie Minoso in Cooperstown (finally) and more on this weekend's Baseball Hall of Fame vote
Not everything in baseball is on lockdown. This weekend, the doors to Cooperstown could open for several deserving candidates -- including the most deserving of all.
MLB lockout in full effect as players, owners remain at an impasse
MLB commissioner Rob Manfred and union head Tony Clark voice opposing views of the players and owners that point to a lengthy lockout.
Advocates for Minor Leaguers forms steering committee to give players a voice, push for better conditions
Advocates for Minor Leaguers announced the formation of a player steering committee on Thursday that will provide strategic advice and leadership regarding the ongoing labor battle to provide better conditions across baseball's development levels.
What we do in the shadows: Locked-out players play into MLB's scrubbed pages
Players have started to change their profile pictures on Twitter to generic player silhouettes in response to MLB's decision to wipe their photos off league websites.
Rob Manfred defends MLB's decision to lock out players
MLB commissioner Rob Manfred explains why he believes a lockout is the best strategy to protect the 2022 MLB season for the benefit of fans.