OAKLAND, Calif. -- With one swing of the bat, Jemile Weeks stopped the constant ribbing he had been taking from teammates.
Weeks' first career home run, a solo shot in the sixth inning, sparked Oakland's comeback as the Athletics rallied past the Texas Rangers 4-3 Thursday. He was 3 for 3 with a walk and scored three runs.
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Coco Crisp hit a go-ahead single in the eighth to help avoid a series sweep.
"That is awesome to see," A's starter Trevor Cahill said. "We've been joking with him quite a bit about it and he finally got it. He's a guy we depend upon to score runs."
Grant Balfour (5-2) pitched a 1-2-3 eighth for the win, then Andrew Bailey finished for his 21st save in 23 chances as the A's snapped Texas' four-game winning streak and handed the Rangers just their second loss in 10 games.
Pinch-hitter Scott Sizemore hit a tying RBI groundout in the seventh against Darren Oliver. Crisp's hit came against Mike Adams (1-3) and helped stop a three-game skid.
Rangers catcher Yorvit Torrealba left in the eighth after experiencing some nausea following a foul tip that hit his mask.
Adrian Beltre hit an RBI double, Nelson Cruz added a sacrifice fly and David Murphy also drove in a run for the Rangers, who couldn't hold a 3-1 lead.
Colby Lewis went 4-0 in six starts against his former A's team this year but missed a chance to join Ferguson Jenkins in becoming the only Rangers pitchers to win five games against Oakland in a season. Jenkins had been the lone pitcher in Texas history to beat an opponent five times in one year -- against the A's and Minnesota in 1974.
Lewis struck out the side in order in the fourth and finished with seven Ks and two walks. He allowed three runs and four hits in 6 1/3 innings.
Weeks, who also doubled ahead of Crisp in the eighth, showed rare power for a speedy 5-foot-9, 160-pound leadoff man. His drive to right came in his 379th career at-bat.
"If I'm leading the league in home runs then it might as well be me who gives it up," Lewis said. "His first one."
Weeks snapped a 90-game homeless streak, the second-longest to start a career in Oakland history behind Mike Bordick's 132 games without a longball before connecting on May 10, 1992.
"When I hit it, it was like a relief but I wasn't surprised," Weeks said. "My game is not to be a home run guy. If I try to hit home runs, it lessens my chances to get on base."
Oakland avoided falling a season-worst 18 games below .500, which would have been its lowest since finishing the 1997 season 32 games below.
The A's completed their home schedule a day after manager Bob Melvin received a new three-year contract to be the permanent skipper. Oakland went 43-38 at the Coliseum for its second straight winning season at home. The A's finish with three games in Anaheim, then three in Seattle.
Crisp crashed his left side hard into the center-field wall trying to make a play on Beltre's second-inning double. He went down briefly but stayed in the game.
Sizemore didn't start as he nurses shoulder tendinitis. ... Actor Danny Glover threw out the ceremonial first pitch. ... A's LHP starter Gio Gonzalez received this year's "Good Guy" award from the local chapter of the Baseball Writers' Association of America. Gonzalez (14-12) starts Friday night against the Angels trying to become Oakland's first back-to-back 15-game winner since Mark Mulder in 2003-04. Gonzalez is 5-1 with a 3.20 ERA over his last six starts.