Contreras, a former catcher who has converted to first base this season, was clearly at fault by stepping in front of the runner accidentally.

Masyn Winn led off the game with a two-strike single to center and, after Ivan Herrera followed with a walk, he scored on Alec Burleson's seeing-eye single up the middle.

Willson and William Contreras on Saturday became the second pair of brothers in baseball’s modern era to homer in the same inning as opponents.

The Contreras brothers achieved this impressive feat during an intense game between NL Central rivals, resulting in an 8-5 Cardinals win.