During the first inning, Fox cameras caught a smudge on Rogers' pitching hand. Rogers said it was dirt mixed with rosin from the rosin bag and wiped it off. MLB spokesperson Rich Levin said the incident was investigated, and the substance was described as dirt. Since it's not ruled a foreign substance, per Rule 8.02, Rogers remained in the game. In the process, Rogers extended his streak to 23 shutout innings. Examination of images from previous games revealed similar smudges in 2 other games.