Jake Petricka left Saturday's game against the Royals with a stiff lower back.
Jake Petricka got four outs against the Tigers for his 14th save Monday.
Jake Petricka took his fifth blown save and his fifth loss after giving up two runs in the ninth Monday against the Royals.
Jake Petricka pitched a scoreless ninth for his 13th save Thursday against the A's.
Jake Petricka pitched a perfect ninth for his 12th save as the White Sox beat the A's 2-1 on Wednesday.
Jake Petricka will not be available this weekend against the Indians, as he just welcomed a new child.
Jake Petricka pitched a scoreless 10th inning against the Twins to earn the save on Tuesday.
Jacob Petricka pitched a scoreless 10th for the save as the White Sox edged the Mariners 2-1 on Saturday.
Jacob Petricka pitched a wobbly ninth on Friday, allowing three hits and a run before ultimately saving Chicago's 10-8 win over the Twins.
Jacob Petricka earned his fifth save of the season as the White Sox defeated the Twins on Thursday.
Jacob Petricka notched his fourth save with a scoreless ninth in a two-run game against the Royals on Monday.
Jake Petricka earned his third save of the season Sunday as the White Sox blanked the Mariners.
After coming into a 1-1 game, Jacob Petricka walked two and allowed two inherited runners to score Wednesday against the Royals.
After Matt Lindstrom got hurt, Jacob Petricka recorded the final two outs of the game against the Royals on Monday for his first career save.