OAKLAND, Calif. -- Sleep-deprived first-time father Kurt Suzuki didn't realize how tired he truly was until hitting a wall in the fifth inning.
He had already done plenty in his first game since welcoming newborn daughter, Malia.
"It was good to be back out here. It had been a long couple days," Suzuki said. "I was running on Adrenalin."
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Cahill (4-0) overcame a three-walk first inning to pitch seven scoreless innings against the rival Rangers, who kicked off a seven-game West Coast road trip all against the division with a punchless performance to lose for the fourth time in five games. Texas fell into a first-place tie with the Los Angeles Angels in the AL West.
Grant Balfour pitched the eighth and Brian Fuentes finished for his seventh save in nine chances after allowing Michael Young's two-out RBI single.
"We had runners out there and we just needed a base hit at the right time," said Rangers manager Ron Washington, who lost on his 59th birthday. "It would have been the difference in the ballgame. We didn't get it. Even against Trevor we had bases loaded, runners on second and third and just didn't get a hit off him at the right time."
Cahill outdueled C.J. Wilson (3-1) and quickly found his rhythm after escaping his 26-pitch first inning unscathed. Cahill, who on April 11 received a new five-year contract worth $30.5 million, issued three free passes in an inning for the fifth time in his career but the first since July 17, 2009, against the Angels during his rookie season.
"Walking three guys in the first inning put things in perspective: 'I've got to throw strikes,"' Cahill said. "I just started pounding the zone a little bit more."
Cahill had walked only eight batters total in his first five starts this season before the four total walks Friday. The right-hander allowed seven hits and also struck out four while improving to 7-2 for his career against Texas.
Mitch Moreland, Young and Elvis Andrus each had two hits for Texas, which has gained or lost ground in the division race each of the last 14 days after holding a two-game lead for three straight days from April 13-15.
Suzuki did some early catching work in the bullpen to get back in a groove but he started at designated hitter. Manager Bob Geren said Suzuki would be back behind the plate Saturday. His two-out RBI single in the third put the A's ahead, then Josh Willingham added an RBI double in the fifth. Suzuki also grounded into a fielder's choice in the seventh as Oakland's third run against Wilson came home.
Suzuki left Anaheim on Wednesday to return to the Bay Area, where his wife, Renee, gave birth to the couple's first child Thursday morning. Malia weighed in at 8 pounds, 3 ounces.
"It's an exciting time in anybody's life," Geren said. "He was all smiles today. He was looking forward to coming back to work."
Regular A's DH Hideki Matsui had the night off against a lefty starter but was slated to start Saturday.
Oakland played its first game back home since the venue was named the Overstock.com Coliseum this week.
"I still call it the Coliseum," quipped Washington, a longtime A's third base coach before taking the Texas job.
Texas clinched the club's first AL West title since 1999 at the Coliseum last Sept. 25 and went on to reach the franchise's first World Series before losing to the San Francisco Giants in five games.
A's center fielder Coco Crisp missed his second straight game with tightness in his left quadriceps, but tested the injury before the game. He could be back Saturday. Left fielder Willingham returned to the lineup after missing Wednesday's series finale against the Angels with a tweaked back.
Former Rangers pitchers Rich Harden and Brandon McCarthy received their AL champion rings -- featuring 137 diamonds -- from Texas director of baseball operations Matt Vinnola and media relations director John Blake outside the Oakland clubhouse before the game.
Oakland pulled in a left-hander from nearby Alameda - the A's are calling him "Alameda Eddie" because they don't know his last name -- just to throw batting practice before the A's opened the series in which they will face three lefty starters. Even longtime equipment manager Steve Vucinich didn't have additional details on the man, and he was also a mystery to manager Bob Geren. Word is he's Eddie Delzer, former Cal State Fullerton star. ... The Rangers signed veteran RHP reliever Justin Miller to a Triple-A contract and he is scheduled to join the Round Rock team Monday. The 33-year-old Miller could be called upon to help Texas' taxed and beat up bullpen. ... Injured A's closer Andrew Bailey (strained forearm) threw with a batter in the box with no problems. How he felt Saturday was to determine his next step. ... Warriors swingman Dorell Wright threw out the ceremonial first pitch.