Jordan Walden (shoulder) will not be ready to be activated from the disabled list next Monday.
That's the first day he's eligible to return, but the right-hander is not quite far along enough. Walden will throw a bullpen session later this week and then head out on a short minor league rehab assignment. He should be ready for activation just before the end of May.
Julio Teheran allowed one run over 8 1/3 innings in the Braves' 5-1 victory over the Twins on Monday.
Teheran had a shutout going until Josh Willingham spoiled it by homering with one out in the ninth. It was the first time in 12 major league starts that he pitched beyond seven innings. He's allowed just nine runs over 33 2/3 innings in his last five starts, and the Braves are now 7-1 in his outings this season.
Cory Gearrin got a one-out save in a four-run game against the Twins on Monday.
Gearrin came in with the tying run on deck and two outs and got Oswaldo Arcia to foul out to left. Gearrin has allowed just two runs in 20 innings this season. He's going to be pitching with the lead or in tie games a lot more going forward with Jonny Venters and Eric O'Flaherty down.
Eric O'Flaherty will undergo Tommy John surgery on Tuesday to repair a torn left ulnar collateral ligament.
It was inevitable after an MRI over the weekend revealed the bad news. In addition to obviously missing the rest of this season, O'Flaherty will likely be sidelined for the first couple months of the 2014 campaign, as well.
Jordan Walden said his right shoulder felt "pretty good" after he played catch on Monday.
It's the first time he's played catch since landing on the disabled list. Walden is shooting to return next Monday when first eligible, but we won't know if that's a realistic goal until he throws from a mound. "That's what we're shooting for, but it's got to be feeling good," Walden said. "'I just need to make sure I'm fully healthy when I come back because we already have great guys down there still. I just want to be part of it down there. I want to be able to help out Craig (Kimbrel) a little bit."

Brian McCann is not in Monday's lineup against the Twins.
He'll take a seat after catching three straight days. Gerald Laird is paired up with Julio Teheran once again.

Kris Medlen allowed just one (unearned) run in seven innings as the Braves beat the Dodgers 3-1 on Saturday.
Medlen was superb, yielding just two hits and three walks while striking out five batters. It was a nice bounceback effort for the talented right-hander, who struggled on Sunday against the Giants. He will carry an improving 3.02 ERA and 1.32 WHIP into his next start against the light-hitting Mets.