White Sox designated RHP Hector Noesi for assignment.
Hector Noesi fell to 0-4 on Monday against the Blue Jays after allowing five runs in seven innings of work.
Hector Noesi (back) is available out of the bullpen on Monday.
Hector Noesi left Saturday's start with a lower back contusion.
Hector Noesi allowed four runs over 5 2/3 innings in Tuesday's loss to the Indians.
Hector Noesi struggled mightily with his command in Friday's loss to the Twins, issuing six walks over 4 2/3 innings.
Hector Noesi struck out five but allowed three runs over 5 1/3 innings Monday against the Indians.
Hector Noesi pitched well in Friday's Cactus League start against the Cubs, allowing two runs on two hits over 4 2/3 innings.
Hector Noesi allowed one run while striking out three over three innings against the Giants on Thursday.
Hector Noesi pitched a pair of perfect frames in Saturday's Cactus League start against the Mariners.
White Sox and RHP Hector Noesi avoided arbitration by agreeing to a one-year, $1.95 million contract.
Hector Noesi took his 12th loss in his final start of the season, surrendering three runs in six innings against the Royals on Friday.
Hector Noesi allowed five runs, including two home runs, over 6 2/3 innings in Sunday's loss to the Twins.
Hector Noesi struggled early but hung tough to record a quality start Tuesday, giving up three runs over seven innings against the Twins.