The Tigers led 3-1 with two outs in the eighth when Josmil Pinto singled to left field off Joba Chamberlain (1-2) with runners on first and second. One run scored on the hit, but the ball skipped past left fielder Rajai Davis for an error that tied the game and allowed Pinto to reach second.
Nunez followed with his single to make it 4-3.
Jared Burton (1-1) won in relief. Glen Perkins got four outs for his 10th save in 11 chances.
ATHLETICS 9, NATIONALS 1
OAKLAND, Calif. (AP) — Derek Norris hit a pair of three-run home runs to back Scott Kazmir's fifth win and the Athletics beat the Nationals to complete a series sweep.
Both of Norris' home runs came on identical two-out, 3-0 pitches from Washington starter and former Oakland pitcher Gio Gonzalez (3-3).
Nick Punto added two hits and three RBIs while Brandon Moss singled twice and doubled. Oakland has won four straight since dropping five of six against Boston and Seattle.
Kazmir (5-1) bounced back from his first loss of the year to pitch seven scoreless innings while allowing only four hits.
DIAMONDBACKS 5, WHITE SOX 1
CHICAGO (AP) — Chase Anderson won his major league debut, Gerardo Parra and Miguel Montero homered, and the Diamondbacks beat the White Sox.
Recalled Tuesday from Double-A Mobile, Anderson (1-0) hadn't seen any action until Sunday and he excelled in his first big league appearance, at one point retiring 12 consecutive batters. He allowed one run and only two hits in 5 1-3 innings while striking out six, helping Arizona win for the fourth time in five games and secure its third consecutive series for the first time since June 2012.
Parra's fifth-inning drive off Hector Noesi (0-3) gave Arizona a 3-0 lead.