Upton hits 2nd homer in 12th, Tigers beat Mariners 8-7

playJustin Upton hits a solo home run in the 12th inning to give the Tigers an 8-7 walk-off victory over the Mariners. It's the second home run of the game for Upton. (0:34)DETROIT -- Justin Upton hit a line drive over the left-field wall in the 12th inning for his second home run of the game, lifting the Detroit Tigers past the Seattle Mariners 8-7 on Monday night.

Upton connected on a 2-2 pitch from Vidal Nuno (0-1) leading off the 12th. Nuno had pitched two scoreless innings.

Miguel Cabrera hit a two-run homer for the Tigers in the first that cleared a brick wall in right-center, bounced off a concrete concourse and out of Comerica Park.

Upton's first homer of the night, a two-run shot that…