Infielder Jayson Nix was designated for assignment.
Sox manager Ozzie Guillen said at his postgame news conference he and GM Kenny Williams needed to talk about playing time for the 21-year-old Cuban slugger, but his first start wouldn't come Friday against Washington Nationals rookie phenom Stephen Strasburg.
"Viciedo's got to wait," Guillen said. "I'm going to pick a spot to see who's pitching and the matchup and play him. Obviously he's not playing tomorrow. I don't want to have him remember his first game of his career against that kid.
"Omar [Vizquel's] playing pretty good right now. Obviously we have to get Viciedo at-bats because that's what he's coming here for."
Viciedo is hitting .290 for Triple-A Charlotte. He leads the Knights with 14 home runs and 34 RBIs.
Guillen said he hoped Nix would catch on with another major league team, and if not, that he'd return to the White Sox soon.
"This is the one thing I hate about this job," Guillen said. "I just talked to him about it. Hopefully somebody take [him] in the big-league level -- and they will. But if not I will appreciate, or we will appreciate, if this kid doesn't have something better, to go back with us and play here because I think he will have an opportunity here. He's a great kid."
Nix batted .163 in 49 at-bats for the White Sox this season.