Pitching matchup: Cardinals RH Adam Wainwright (2-0, 3.31 ERA) vs. Braves RH Javier Vazquez (2-1, 2.63 ERA). Ex- Braves prospect Wainwright is 3-0 with a 1.13 ERA and .195 opponents' average in six games (three starts) vs. Atlanta, including 3-0 in the starts with one run allowed in each. ... Vazquez is 2-0 with a 0.75 ERA in his past two starts and has 29 strikeouts in 18 innings in his past three.

What to watch for: Wainwright has a .311 opponents' average with no one on base, a .167 with runners on, and .115 with runners in scoring position. David Ross is 2-for-9 with a homer against him. ... Vazquez is 1-5 with a 4.05 ERA in his last six starts vs. St. Louis and received one or no support runs; he was in four of those losses. Albert Pujols is 5-for-13 with a homer against him.