What happened: JJ Wetherholt homered on the first pitch in the previous meeting as the Cardinals blanked the Cubs. The St. Louis Cardinals lead the series 2-0 entering Sunday's scheduled game in Chicago.
Why it matters: Chicago enters at 49-39, while St. Louis is 46-39. The matchup carries NL Central implications as both clubs approach the All-Star break.
By the numbers: The Cardinals have outscored the Cubs 20-1 through the first two games of the series. Chicago averages 5.1 runs per game and allows 4.6; St. Louis averages 4.7 and allows 4.5.
What to watch: Watch whether Wetherholt can provide another early spark and whether Chicago's offense responds in the scheduled finale.