Hector Rondon goes onto the paternity leave list as well.
Both pitchers will be available to this afternoon.
The youngsters have been sent back down, giving us a better idea of what lies ahead.
Pete Kozma singled home the tiebreaking run in the sixth inning and the St. Louis Cardinals ended a four-game losing streak.
The win gave the Cubs, who won the opener 3-0 on Friday, a series win in St. Louis for the first time in nearly three years.
Nate Schierholtz is having the kind of season that makes contending clubs interested in dealing for him. He showed why there is such interest with a career-high five-RBI night Wednesday in the Chicago Cubs’ 12-inning 7-6 win over the Arizona Diamondbacks.