ST. PETERSBURG -- Steve Pearce, who was acquired from the New York Yankees on Saturday afternoon, didn't have to wait long for his Orioles debut. After arriving in St. Petersburg on Saturday night, Pearce was in Sunday's starting lineup, batting eighth and playing right field.

"I was shocked," Pearce said of the news that he was headed to Florida to meet his new team on the road. "I had a little bit of a miscommunication with my manager [at Triple-A]. When he said I was going up, I thought I was going up with the Yankees, with my affiliated team. But I was going up with Baltimore, and I'm excited to be here. I'm excited to be in the big leagues."

Pearce hit .321 with 15 doubles, 11 home runs, 30 RBIs and a .996 OPS in 52 games for Triple-A Scranton/Wilkes-Barre and the Orioles -- down two outfielders in Nolan Reimold and Nick Markakis -- felt the 29-year-old could be a help. Pearce, who also plays first base, was eligible to opt out of his contract and elected to do so, with the cash sent to New York a very small sum that's more of a technicality to cover his contract.

Asked to pinpoint his success this season, Pearce -- who spent five seasons with the Pirates -- said regular playing time has allowed him to get in a good groove.

"I've been comfortable all year," he said. "Since the season started, there's been a comfort zone, and I've stayed in it all year."

Prior to joining the O's, Peace had appeared in 185 Major League games with Pittsburgh, hitting .329 with 29 doubles, three triples, nine home runs and 52 RBIs.

Jones 'all good' after MRI on wrists, hands

ST. PETERSBURG -- Orioles center fielder Adam Jones reported via his Twitter account on Monday morning that he was "all good" and was on his way to Boston, where the Orioles open a series against the Red Sox on Tuesday.

Jones has been bothered by right wrist soreness for the past few weeks, and stayed in Florida to get an MRI on both hands and wrists during the team's off-day.

The Orioles' public relations department said via Twitter that the MRI, taken in Sarasota, showed contusions on both hands and wrists but that he will be able to play.

Jones, who was pinch-hit for in the ninth inning of Sunday's 8-4 loss to Tampa Bay, had X-rays taken at Tropicana Field after the game. While they came back negative, the team wanted to err on the safe side.

"It just didn't feel right," said Jones, who committed his fourth throwing error of the season on Sunday. "I can feel it when I'm hitting. [The doctors] wanted to get a picture of it, and I wanted to get a picture of it, and see what's going on in there so we can be sure and relieve any doubt."

Jones was hit by a pitch on the left wrist in Toronto on Wednesday night, but said that injury is fine and he's just experiencing "general soreness." His right wrist, however, has caused him more pain. The 26-year-old Jones can't pinpoint how or when it started, although he did feel it again on a third-inning slide.

"Sliding, diving into bags, hitting, playing baseball," Jones said. "It's still strong, it's just sore ... it just hurts."

The Orioles are already playing without left fielder Nolan Reimold and right fielder Nick Markakis. The team's cleanup hitter, Jones is hitting .315 with 16 homers and 34 RBIs, leading the O's in both categories. His presence in the lineup is even more important, given the absence of Reimold, Markakis and second baseman Brian Roberts. Markakis, who had initial X-rays come back negative before discovering a hamate fracture in his right wrist, is expected to be sidelined 3-4 weeks, while Reimold is out indefinitely.

Jones signed a six-year, $85.5 million contract extension a week ago.

"The doctors want to make sure," he said. "Me? I just want to go to Boston. But the doctors want to make sure -- and since we have an off-day, it makes it a little bit better.

"I wanted to hit [in the ninth inning], but [manager Buck] Showalter, he was like, 'Hey, we will take a precaution.' Trust me, I want to hit."

O's add righty Johnson to 40-man roster

ST. PETERSBURG -- The Orioles announced on Sunday that they selected the contract of right-handed pitcher Steve Johnson and optioned him to Triple-A Norfolk, where Johnson started Game 1 of Norfolk's Sunday doubleheader vs. Scranton/Wilkes-Barre.

The move puts Johnson on the 40-man roster and keeps him from opting out of his contract and possibly leaving the organization. To make room on the 40-man, the Orioles moved lefty Zach Britton to the 60-day disabled list, a transaction which doesn't change his timetable given that Britton was put on the disabled list on March 26 with left shoulder impingement.

The 24-year-old Johnson is 1-3 with a 2.62 ERA (44.2 IP, 13 ER) in eight games (seven starts) for the Tides. He was acquired from the Los Angeles Dodgers on July 30, 2009, in a deal that brought Josh Bell -- who was traded to Arizona earlier this season -- to Baltimore in exchange for George Sherrill.

Britton has made two rehab starts for Double-A Bowie and is scheduled to pitch on Tuesday for Norfolk in Rochester.