Marlins acquired RHP Andre Rienzo from the White Sox for LHP Dan Jennings.
White Sox optioned RHP Andre Rienzo to Triple-A Charlotte.
White Sox recalled RHP Andre Rienzo from Triple-A Charlotte.
Andre Rienzo has been moved to the White Sox bullpen.
White Sox manager Robin Ventura said Monday that Andre Rienzo is still a member of the team's rotation "as of right now."
Andre Rienzo was tagged for four runs over 4 1/3 innings Saturday in a loss to the Twins.
Andre Rienzo surrendered six runs over six innings in Sunday's loss to the Royals.
Andre Rienzo's next turn in the rotation will be skipped following Tuesday's rainout.
White Sox manager Robin Ventura said Andre Rienzo will start Wednesday against the Tigers.
Andre Rienzo was tagged for seven runs in 3 2/3 innings by the Angels on Friday.
Andre Rienzo was chased after giving up three runs over just 3 1/3 innings Saturday against the Padres.
Andre Rienzo allowed five runs -- four earned -- on seven hits in a loss to the Yankees on Sunday.
Andre Rienzo struck out eight and allowed two runs over six innings in Tuesday's win over the Royals.