Michael Wacha struggled through his first three innings, throwing 77 pitches overall and 36 in the third.
This inefficiency led manager Mike Matheny to pull Wacha from the game as the fourth frame began. Lefty reliever Tyler Lyons entered for the starter.
The Cardinals trailed the Dodgers 4-3 when Wacha left.
Wacha battles through inefficient three innings, gives up lead
Michael Wacha has not had his best stuff Tuesday night and is struggling with his efficiency.
The right-hander has allowed the leadoff man to reach base in each of the first three innings, as third baseman Logan Forsythe singled in the first and walked in the third, while second baseman Chase Utley tripled in the second.