‘‘This is the toughest moment in my whole career,’’ Valverde said. ‘‘I had everything. These guys hit it. There’s nothing I can do.’’
NOTES: This is the seventh postseason walkoff win for the A’s in franchise history and first since Ramon Hernandez won it with a squeeze bunt in the 2003 division series against Boston. ... A.J. Griffin allowed two runs in 5-plus innings. He was the third Oakland rookie pitcher to start a game this series, the most ever by a team in a single postseason. The A’s used just two rookie starting pitchers in 147 postseason games before this year:: Joe Bush in the 1913 World Series and Barry Zito in the 2000 division series. ... Triple Crown winner Miguel Cabrera has not driven in a run in the series. ... Reddick has struck out eight times in the four games, setting an Oakland record for most in a postseason series.