In a corresponding move, Chicago recalled right-hander Carson Fulmer from Triple-A Charlotte.
Banuelos has struggled mightily this season, posting a 6.90 in 45 2/3 innings across 13 games, including eight starts.
Fulmer hasn't fared any better, carrying a 6.97 ERA in eight relief appearances over three stints with the White Sox in 2019. He has posted a 3.97 ERA in 15 relief outings at Triple-A.