Butler was waived by Oakland this week and will join the team immediately, with the Yankees chasing a wild card berth and also four games back in the AL East.
Ken Rosenthal of Fox Sports reports the Yankees intend to deploy the righty against left-handed starters, with seven of their next 11 games slated against lefties. Butler has been better against righthanders this season, but markedly more successful against lefthanders over the past four years (.847 OPS vs. lefties, .749 against righties).
Butler, 30, hit a middling .276 with four home runs and 31 RBIs in 85 games for the A’s this season. After enjoying a peak year with the Royals in 2012, he has declined steeply since, reduced to spot duty this season for the first time in his career.