Sergio Escalona has been suspended 50 games by MLB.

Escalona had some sort of involvement in the Miami-based Biogenesis clinic and is now done for the remainder of the 2013 season. The 29-year-old left-hander posted an ugly 6.60 ERA and 2.07 WHIP in 15 innings this summer for the Astros' Double-A affiliate in Corpus Christi.

Astros re-signed LHP Sergio Escalona to a minor league contract.

He'll also get an invite to spring training. Escalona missed the entire 2012 season following Tommy John surgery, but he should be ready to contribute in the spring. The 28-year-old southpaw posted a 2.93 ERA and 25/11 K/BB ratio in 27 2/3 innings with the Astros in 2011.

Astros sent LHP Sergio Escalona outright to Triple-A Oklahoma City.

Escalona missed all of this season while recovering from Tommy John surgery. He should be ready for the start of 2013.

Astros transferred LHP Sergio Escalona from the 15-day disabled list to the 60-day disabled list.

Escalona is recovering from Tommy John reconstructive elbow surgery and probably won't return until early 2013.

Astros placed LHP Sergio Escalona on the 15-day disabled list with a left elbow injury.

Escalona will miss the entire 2012 season following Tommy John reconstructive elbow surgery. The lefty registered a 2.93 ERA across 27 2/3 innings last year.

Sergio Escalona (elbow) will undergo season-ending Tommy John surgery.

Escalona was sidelined for most of camp with what was thought to be a hyperextended elbow, but was told Saturday he had a torn ligament and will have to undergo surgery. The 27-year-old appeared in 49 games last year and went 2-1 with a 2.93 ERA as the Astros' left-handed specialist.

Sergio Escalona will again have his left elbow examined by doctors.

Escalona has been nursing elbow soreness throughout camp, and it had seemed like he had turned a corner, but evidently he's still battling the ailment. We'll have to see what the doctor says, but you have to think at this point that his status for the start of the season is up in the air.

Sergio Escalona (elbow) is scheduled to make his Grapefruit League debut during Monday's game.

Escalona will pitch one inning in relief of starter Kyle Weiland. The 27-year-old left-hander has been sidelined for most of camp due to a hyperextended elbow.

Sergio Escalona (elbow) is expected to throw a bullpen session in the next couple of days.

Escalona hyperextended his elbow swinging a bat early in camp and has yet to pitch in a game this spring. However, Astros' manager Brad Mills is pleased with his recent progress. The 27-year-old southpaw posted a 2.93 ERA and 25/11 K/BB ratio over 27 2/3 innings last season. If healthy, he should open the year in the Astros' bullpen.

Astros manager Brad Mills said Sergio Escalona (elbow) will probably need at least a couple bullpen sessions before being ready for game action.

Escalona has played some catch but has not yet thrown from a mound since hyperextending his elbow while swinging a bat early on in camp. He'll still have plenty of time to get ready for the season. The 27-year-old southpaw posted a 2.93 ERA and 25/11 K/BB ratio over 27 2/3 innings out of the Astros' bullpen last year.

Sergio Escalona is scheduled to have an MRI on his left elbow.

Escalona is still dealing with some discomfort after hyperextending his elbow while swinging a bat last week. The 27-year-old southpaw posted a 2.93 ERA and 25/11 K/BB ratio over 27 2/3 innings last season. If healthy, he should have a bullpen spot locked up.

Sergio Escalona will not throw a scheduled bullpen session Friday after hyper-extending his left elbow while swinging a bat earlier in the week.

"We wanted to give it a day of rest," Astros manager Brad Mills said. "He's still going to go through some things on the other fields. He's not going to throw on the other fields. He'll do some bunting, but no hitting. As of right now, we're not concerned about it because he didn't hurt it while throwing." It sounds like the 'Stros are just being cautious here. Escalona figures to resume throwing before long and should have a bullpen spot locked up after posting a 2.93 ERA in 27 2/3 innings last year.

Astros activated LHP Sergio Escalona from the 60-day disabled list.

Escalona posted a 2.93 ERA and 25/11 K/BB ratio over 27 2/3 innings before suffering a season-ending ankle injury in the early part of September. The 27-year-old southpaw should have a claim on a bullpen spot entering spring training.

Astros placed RP Sergio Escalona (ankle) on the 60-day disabled list.

Escalona tripped over a glove in the outfield during Friday's batting practice but fortunately the X-rays came back negative. Over 27 2/3 innings Escalona posted a solid 2.93 ERA and 1.27 WHIP. He fanned 25 batters as well. Escalona's trip to the disabled list will allow for the callup of LHP Xavier Cedeno.

Sergio Escalona (ankle) is likely done for the season.

The good news is that X-rays on Escalona's ankle proved to be negative, but he was on crutches Friday and is not optimistic about returning this season. The lefty reliever suffered the injury when he tripped over a stray glove in the outfield during batting practice Friday.

Astros reliever Sergio Escalona tripped over a glove in the outfield in batting practice Friday and suffered a sprained ankle.

He was carted off and taken for X-rays. Escalona has a 2.93 ERA in 27 2/3 innings for Houston this season.

Astros activated LHP Sergio Escalona from the 15-day disabled list.

Escalona missed a little over two weeks due to left elbow tendinitis. He returns to a decent 3.00 ERA.

Sergio Escalona (elbow) is expected to return to the Astros' bullpen before Tuesday's game.

Escalona finished up a short minor league rehab assignment on Monday, throwing a scoreless inning and striking out two for Triple-A Oklahoma City. The left-hander will return to a 3.00 ERA and 25/11 K/BB ratio.

Sergio Escalona (elbow) will begin a throwing program Sunday.

Escalona landed on the DL last week with elbow tendinitis. If he progressed as hoped, he should be able to return around the time he's eligible.

Astros placed LHP Sergio Escalona on the 15-day disabled list, retroactive to August 22, with left elbow tendinitis.

The severity of the injury is not yet known, but he'll at least be sidelined through the early part of September. Escalona, 27, has a 3.00 ERA and 25/11 K/BB ratio over 27 innings this season. Juan Abreu will replace him on the active roster.