FORT LAUDERDALE, FLA. -- Orioles pitcher Hayden Penn twisted his left ankle while carrying boxes on stairs after Sunday's workout, a minor injury that could affect his chances of making the Opening Day roster.
Penn, who has his ankle wrapped and was carrying crutches in the clubhouse, left Fort Lauderdale Stadium for X-rays that came back negative. A Grade I sprain has been diagnosed based on a magnetic resonance imaging test.
The 22-year-old pitcher is considered day-to-day but will not be able to make his scheduled pitching appearance in the exhibition home opener Friday against the Florida Marlins.
"Obviously, it's going to push him back, and the farther it pushes him back, the tougher it's going to be for him to win a spot," manager Sam Perlozzo said. "Hopefully, in a day or so, it won't be so serious and we can get him on the hill and we can try to not have him lose so much time."
Executive vice president Jim Duquette said Penn was able to put his "full body weight" on the ankle and that the crutches were precautionary. Penn, who wasn't available for comment after the MRI, said his ankle felt "fine" when he returned after having the X-ray.
Penn, who is being considered both for a spot in the rotation and for the long-man slot in the bullpen, went 0-4 last season with a 15.10 ERA in six starts. His 2006 season was interrupted by an emergency appendectomy on May 22, the day before his first scheduled start. He missed nearly seven weeks.
Trachsel to start spring opener
Perlozzo announced yesterday that veteran right-hander Steve Trachsel, signed earlier this month when the club learned of Kris Benson's injury, will start the exhibition opener Thursday in Jupiter against the Marlins.
"Two innings isn't a lot to get ready for. I hope everybody in this room is ready to throw two innings at this point," Trachsel said. "[I'm] just working on locations, working on getting pitch counts up."
Erik Bedard will start Friday opposite Marlins ace Dontrelle Willis. Daniel Cabrera is scheduled to pitch Saturday in Viera against the Washington Nationals, and Jaret Wright and Adam Loewen will throw Sunday at Fort Lauderdale Stadium against the New York Mets. Perlozzo said the order will have no bearing on how the rotation will shake out come the regular season.
All regular-season games on TV
Every Orioles game this season will be televised by the Mid-Atlantic Sports Network, according to a schedule announced yesterday.
Last season, nine games weren't part of the original schedule. However, fans without cable or satellite TV are scheduled for 40 fewer games than 2006.
Every Orioles game will be carried on MASN or MASN2, an alternative channel set up to accommodate simultaneous telecasts of the Orioles and Nationals. MASN also will simulcast 25 games on WJZ/Channel 13. Last year, 65 games were scheduled for local over-the-air stations.
The Orioles' opener in Minnesota on April 2 will be carried on MASN. The home opener April 9 is being telecast by MASN and Channel 13.
Around the horn
Reliever Jamie Walker, who was hit in the back of the head by a line drive Friday, said he will throw a bullpen session today. ... Though the lineup is by no means set, Perlozzo said he is leaning toward a top six of Brian Roberts, Melvin Mora, Nick Markakis, Miguel Tejada, Aubrey Huff and Ramon Hernandez..
Sun reporters Roch Kubatko and Ray Frager contributed to this article.