Fox 4 captured the play, which was an easy catch for the third baseman Gallo:
Bush, who began his career as a shortstop, also went for the ball and ended up colliding with him. The relief pitcher also injured his knee while Gallo suffered a bloody nose.
Gallo has been one of the top power hitters in the majors in his first full season. The 23-year-old is hitting just .205, but he has 35 home runs to lead Texas and rank third in baseball behind only Giancarlo Stanton and Aaron Judge.
It has also been a solid season for Bush, who has a 3.04 ERA after making one out Sunday. The former No. 1 overall draft pick has re-established himself as a pitcher and has come through with 10 saves and seven holds on the season.
With the Rangers still competing for a wild-card spot in the American League—they are 2.5 games back after the loss to Chicago—losing two key players could be extremely damaging.