Manager Bob Geren was particularly pleased with the news, since seven players already are on the DL and he'd planned to have Bradley back shortly.
"Nothing needing anything more than rest is definitely good," Geren said. "'No surgery,' is always good."
Bradley hit .263 (10-for-38) in 11 games prior to straining his left hamstring and landing on the disabled list on April 23. He had two doubles, a homer, three RBIs and seven walks.
Lineup shuffle: Outfielders Shannon Stewart and Travis Buck each had the day off on Sunday. Stewart's been playing with a sore ankle and Buck a sore wrist, so Geren hoped a little rest followed by an off-day Monday would clear up any lingering issues prior to the upcoming stretch when the A's will play 15 games in as many days.
"Shannon's played a lot of games ... we want to get him recharged," said Geren, who added Stewart would be available as a defensive substitution. "Two days should help clear everything up."
Catcher Jason Kendall had the day off as well, although it had been planned in advance and was not a direct result of either Saturday's 12-inning game or the fact Kendall was hit by a pitch.
With the regulars resting, new acquisition Jack Cust made his A's debut in left field, hitting from the five-hole. Also, newbie Chris Snelling moved into the leadoff position from the No. 9 slot.
Bullpen breaks: Geren said there was a "small chance" that Huston Street, who threw one inning each on Friday and Saturday and Justin Duchscherer, who worked two-thirds of an inning Saturday but has gone back-to-back days, would be available for duty on Sunday. Kiko Calero threw two innings Saturday and would not be used in the series finale, Geren said.
Dribblers: Oakland hasn't been more than two games above or below .500 all season. ... The A's are 7-4 in one-run games after a loss Saturday, and 2-2 in extra innings. ... Street is 1-0 with six saves in seven chances and a 0.66 career ERA against the Rays.
Down on the farm: Kurt Suzuki singled in two with the bases loaded to tie the game in the eighth and Daric Barton followed suit to put Triple-A Sacramento up for good during a 4-3 win over Tucson on Saturday . ... Double-A Midland added to its five-game win streak with an 11-1 drubbing of Frisco. ... Anthony Recker homered with two outs in the ninth for Class A Stockton's lone run during a 5-1 loss to Lake Elsinore.
On this day: In 1975, Claudell Washington hit the 1,000th homer in club history off of California's Ed Figueroa. ... in 2003, Mark Mulder pitched the A's fastest game since August 12, 1979. The game, which lasted 1 hour, 49 minutes, was also Mulder's third straight complete game, and resulted in a 6-0 victory over the White Sox.
Up next: Oakland has an off-day on Monday before it concludes its eight-game road swing with a three-day stint in Kansas City. The A's will send right-hander Chad Gaudin (1-1, 2.70 ERA) to the mound, where he'll face off against Royals lefty Jorge De La Rosa (3-2, 3.38 ERA). First pitch is scheduled for 5:10 p.m. PT.