Nova is competing against CC Sabathia for the final spot in the rotation. He pitched 4 2/3 innings, allowing six runs -- five earned- on five hits.
"I put myself in a really bad position right now," Nova said. "I didn't help myself today."
The Orioles scored three runs in the bottom of the 10th for the victory.
Yankees: Nova has to fight Sabathia's legacy in the competition for the fifth starter's job. "It's probably the biggest story in camp right now," manager Joe Girardi said. "That's probably why there's a lot being made out of it because of who CC is and what he's done in this game, what he has meant to the Yankees. We don't win a World Series without CC. We don't get to all those playoffs without CC." ... RHP Michael Pineda threw five scoreless innings in a minor league intrasquad game.
Orioles: Tillman made his third start of the spring and was pleased with how he threw. "I didn't think there were very many bad pitches," he said. "There were a lot of good pitches. They made good contact, I think twice all day, so I wasn't unhappy with it by any means."
Yankees: OF Jacoby Ellsbury (wrist) is not scheduled to play Saturday against Toronto in Dunedin. Ellsbury took batting practice for the second time since he was hit by a pitch on March 19. "Today I was taking my normal swing. I feel confident in my swing," Ellsbury said in Tampa. ... INF Rob Refsnyder suffered a bloody lip trying to field a ground ball. He made two errors.
Orioles: LHP Brian Matusz (back) will pitch on Sunday in an attempt to avoid starting the season on the disabled list. Matusz has pitched just two innings this spring. ... C Matt Wieters (elbow) played in a minor league game and the team may decide on Saturday when he can catch again. ... INF Steve Tolleson got the wind knocked out of him during a collision with C Francisco Pena. He said he feels sore but thinks he'll be ready to play Saturday. ... RHP Chaz Roe, whose wife gave birth to a baby girl, will return to the club on Saturday.