(Oakland, CA)  --  Tony Kemp played the hero as the Athletics beat the Yankees 3-1 Sunday night in Oakland.  Kemp mashed a go-ahead two-run homer in the eighth to push Oakland to its second straight win.  Josh Harrison and Yan Gomes each added a pair of hits.  Paul Blackburn tossed five scoreless frames to take a no-decision.  Deolis Guerra got his second win in relief, while Andrew Chafin locked down his second save of the year.  Giancarlo Stanton had two hits for New York, which has lost back-to-back games.  Chad Green was charged his sixth loss, allowing runs in relief.