Motter's grand slam in the 3rd
Mariners @ AthleticsMarch 15, 2018 | 00:00:51
Taylor Motter hammers a towering grand slam to left field that extends the Mariners' lead to 6-1 in the top of the 3rd inning
Taylor Motter hammers a towering grand slam to left field that extends the Mariners' lead to 6-1 in the top of the 3rd inning