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8/25/2013 3:18 P.M. ET

Decision on Betemit coming soon

BALTIMORE -- The Orioles are likely nearing a decision on Wilson Betemit as his rehab assignment ends Monday.

Manager Buck Showalter said he and executive vice president of baseball operations Dan Duquette have been talking about where Betemit is at physically and should make a decision within 48 hours.

Betemit has missed the entire season (torn right PCL) and been working hard to make it back and help the Orioles, especially in the designated hitter spot.

"He's improved; he's getting there," Showalter said. "It's not something that just happens overnight. It's a lot better than it was when he first started."

Showalter said they could wait until Sept. 1, when the rosters can be expanded, but the Orioles would like Betemit's bat back since he's a big contributor. They'll need offense when heading to Boston this week for a key series with the Red Sox.

Hammel to begin Double-A rehab stint Thursday

BALTIMORE -- Orioles right-hander Jason Hammel's throwing session went well Sunday and he's scheduled for a Minor League rehab assignment at Double-A Bowie.

Orioles manager Buck Showalter said Hammel is going to Bowie on Thursday and probably throw 45-50 pitches or two or three innings -- whichever comes first. Hammel threw 60 pitches Sunday and "did fine," according to Showalter.

Hammel also said before Sunday's game that he felt fine after the throwing session.

Showalter said that if Hammel got through the innings with a lower number of pitches at Bowie, they'll have him go to the bullpen and throw some more.

"We'd like to get him to 45 [pitches]," Showalter said.

Hammel's been on the disabled list since July 29 with a right flexor mass strain. He'd been struggling throughout the summer and lost his last six decisions to drop to 7-8.

The right-hander hasn't won since beating the Nationals on May 27.

Worth noting

• What a difference a year makes. The Orioles posted a 29-9 record in one-run games last year. They haven't done so well this season, going just 14-23. In fact, they've dropped seven straight one-run contests.

Chris Davis has hit 21 of his 46 home runs versus the American League East. According to STATS, that's more than any other player versus the division he plays in -- ahead of Edwin Encarnacion and Evan Longoria (both with 19).

• The Orioles entered Sunday with a 20-12 record versus the American League West. That's the fifth-best record they've had against that division. The best came in 1997 when the Orioles posted a 32-12 record.

Nick Markakis' third-inning double was his first extra-base hit since July 19 at Texas, a span of 125 at-bats.

Jeff Seidel is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.