Oakland's bats seemed to rally around the presence of the outfielder, who was on the 15-day disabled list with a strained left hamstring.
The A's lashed 11 hits in a 6-1 victory over the Rangers. They hadn't scored as many as six runs since May 18.
Granted, their production came against Texas starter John Koronka, who entered with a 5.40 ERA and was a fill-in for injured Brandon McCarthy. But for an offense that's struggled for much of this season, Bradley was a welcome addition.
"I know when he stands up there and walks into the (batter's) box from the dugout, you feel positive," A's manager Bob Geren said. "On any swing, he can make something happen."
Bradley knocked in a run with a third-inning double and he singled to aid another scoring rally in the fifth.
A'S 6, RANGERS 1: Dan Haren allowed just four hits and one run over eight innings to win his third straight start. The A's jumped ahead with two runs in the first inning, all the support that Haren would require. Dan Johnson led the way with three RBIs.
--OF Milton Bradley was activated from the disabled list and started in center field Wednesday against Texas. He went 2-for-4 with an RBI. Bradley is one of two outfielders the A's are expecting to get back this week. Mark Kotsay is on schedule to be activated from the 60-day disabled list before Friday's game against Minnesota.
--OF Hiram Bocachica was designated for assignment to make room for Bradley on the 25-man roster. Bocachica, 31, started five games in center field for the A's after being called up from the minors May 16. He had just one hit in 17 at-bats, but that one hit was a two-run homer that helped beat the White Sox on May 23.
--OF Dee Brown, a former Kansas City Royals outfielder, was acquired for cash considerations from the Arizona Diamondbacks on Wednesday. Brown was assigned to Triple-A Sacramento, where he debuted in the River Cats' win over the Isotopes. Brown may take Bocachica's spot in Sacramento should Bocachica elect to sign-on with another team after his release from Oakland.
--2B Mark Ellis missed his second straight game with bruised cartilage in his right knee, as Marco Scutaro started at second base Wednesday. Even if healthy, Ellis could miss Friday's game because his wife, Sarah, is expecting, and plans are to induce labor Thursday.
--RHP Dan Haren won his third straight start and continued making a case for an All-Star appearance. He allowed the Rangers just four hits over eight innings in Wednesday's 6-1 victory. He lowered his AL-best ERA to 1.64.
--RHP Kiko Calero pitched a 1-2-3 ninth inning Wednesday, an important outing for a pitcher who has had several shaky moments this season. Calero lowered his ERA to 5.85.
-- The A's announced the signing of two draft-and-follows from last year's draft just ahead of the deadline for signing such players. Oakland inked Carlos Hernandez of West Valley JC and Dante Love of San Diego CC. Hernandez is a pitcher and Love is a catcher. This will be the last year that teams can sign draftees as late as 11 months from the draft. Starting this season, teams will have until August to sign players that they draft.