Opening day: Cardinals 4, Cubs 3

Cardinals third baseman Greg Garcia jumps on teammates as they celebrated with Randal Grichuk after his walkoff during the ninth inning.

Cardinals center fielder Randal Grichuk after his walkoff hit in the bottom of the ninth inning.

Cubs relief pitcher Mike Montgomery talks with catcher Willson Contreras during the ninth inning.

Cubs catcher Willson Contreras follows through on his three-run home run against the Cardinals during the ninth inning.

Cubs catcher Willson Contreras rounds the bases after his three-run home run against the Cardinals during the ninth inning.

Cubs catcher Willson Contreras after his three-run home run against the Cardinals during the ninth inning.

Cardinals right fielder Stephen Piscotty catches the flyout by Cubs first baseman Anthony Rizzo with the bases loaded during the eighth inning.

Cubs first baseman Anthony Rizzo reacts after his flyout with the bases loaded during the eighth inning.

Cardinals starting pitcher Carlos Martinez tips his hat while leaving the game in the eighth inning.

Cubs first baseman Anthony Rizzo reacts after his strikeout during the seventh inning.

Cubs relief pitcher Carl Edwards Jr. reacts after getting out of the sixth inning against the Cardinals with the bases loaded.

The Cardinals’ Dexter Fowler smiles with the Cubs’ Anthony Rizzo after his single during the third inning.

Cubs starting pitcher Jon Lester is taken out of the game during the sixth inning.

Cubs left fielder Kyle Schwarber after he struck out during the sixth inning.

Cubs second baseman Javier Baez misses the single by Cardinals shortstop Aledmys Diaz during the third inning.

Cardinals center fielder Dexter Fowler smiles with Cubs first baseman Anthony Rizzo after his single during the third inning.

Cubs catcher Kyle Schwarber hits a single against the Cardinals during the first inning.

Cardinals catcher Yadier Molina hugs Cubs second baseman Javier Baez after he reached second base on a single by Cardinals right fielder Stephen Piscotty during the second inning.

Cubs starting pitcher Jon Lester talks with catcher Willson Contreras during the second inning.

Cubs third baseman Kris Bryant after he struck out during the third inning.

Cubs left fielder Kyle Schwarber reacts after his single against the Cardinals during the first inning.

Cubs starting pitcher Jon Lester delivers a pitch against the Cardinals during the first inning.

Cubs manager Joe Maddon hugs right fielder Ben Zobrist in the dugout before the start of the game.

Cubs and Cardinals players line up for the national anthem.

Cubs players prepare for the game.

Cubs second baseman Javier Baez and other teammates warm up before the game.

Cubs right fielder Ben Zobrist stretches with teammates before the start of the game.

Cubs manager Joe Maddon and president Theo Epstein during batting practice.

Cardinals center fielder Dexter Fowler points to someone near the Cubs dugout during warmups.

Cubs shortstop Addison Russell throws during practice before the start of their game.

Cubs right fielder Ben Zobrist stretches during batting practice.