Matt Olson, Marcus Semien and the A's made MLB history Friday night.
In the first game in league history that went to extra innings since the new rule placing a runner at second base went into effect, Oakland came out on the winning end.
Semien began the bottom of the 10th at second, and after Ramon Laureano was hit by a pitch and Matt Chapman struck out, a wild pitch allowed both A's runners to advance a base, placing the winning run on third.
After Khris Davis walked to load the bases, Matt Olson then blasted the first pitch he saw into the right field bleachers to give the A's a 7-3 walk-off victory.
OLY WALK-OFF GRAND SLAM 😱 pic.twitter.com/XYka0C3ebz— A's on NBCS (@NBCSAthletics) July 25, 2020
Olson came up with a huge play in the top half of the inning, too. He fielded a hard-hit grounder by Jared Walsh and then made the heads-up throw across the diamond to Matt Chapman, who proceeded to catch Shohei Ohtani -- who began the inning at second -- in a rundown.
[RELATED: Davis, Kemp raise fist during anthem]
Quite the clutch season opener for Olson, who now is the answer to a trivia question.
[BALK TALK: Listen to the latest episode]