SEATTLE -- Kurt Suzuki hit his first career grand slam and Dan Johnson also hit one as the Oakland Athletics beat the sinking Seattle Mariners 9-3 on Monday night.
Joe Blanton (13-9) allowed two runs and eight hits over seven innings while winning for the fifth time in six decisions -- but for the first time in four starts against Seattle.
Jose Guillen hit his 20th home run in the eighth off Alan Embree to bring Seattle within 5-3. Johnson hit his third career grand slam in the ninth off Ryan Rowland-Smith -- the second time in franchise history the Athletics have hit two grand slams in one game.
Huston Street got the final four outs for his 13th save in 17 chances. The A's won for just the second time in six games on their road trip.
Sign Up and Save
Get six months of free digital access to The Modesto Bee
Seattle lost for the 14th time in 16 games, among the worst falls by a contending team in September over the last half-century.
Rookie Daric Barton, a 21-year-old called up from Triple-A Sacramento by Oakland on Monday to start at first base for the rest of the season, walked twice, doubled in the sixth for his first major-league hit and singled in the eighth.
Horacio Ramirez (7-6) was as bad as the Mariners needed him to be good -- which about summarizes his first season with them. He lasted 1º innings and allowed all of Oakland's runs on four hits and two walks.
In the second, Ramirez gave up a single to Mark Ellis and walked Johnson -- who was batting .163 since July 3. Then Jack Hannahan, 3-for-16 (.188) on the road trip and a minor leaguer until last month, singled home Ellis. Ramirez walked Barton on a full count to load the bases. Suzuki drove Ramirez's second pitch off a cement wall deep in the A's bullpen. That put Oakland ahead 5-0.
The A's pulled Barton out of the PCL championship series so he could get a true test against contenders Seattle, Cleveland, Boston and the Angels over the last 18 games.