Chen said he concentrated mostly on the movement on his fastball Saturday, and wasn't concerned about his breaking ball and change-up.

Johnson progressing

Right-hander Jim Johnson, who threw his third bullpen session Sunday, said he's no longer receiving treatment for lower back soreness.

"This is like my mini-spring training," Johnson said. "It doesn't take me long, so I'm right where I need to be. Even if I was on schedule with everyone else, I would be feeling the same thing, trying to work on little things."

Johnson said he will next throw two live batting practice session and then pitch in a game.

"Everything's coming along," Johnson said. "A lot of it is trying to get that timing back, trying to find the arm slot consistently. You throw three good ones and then you throw one that doesn't feel right. You've just got to do the repetitions. That's it. Everything is good. I think my curveball is actually good. That's a shocker because that's usually the last thing to come around for me."

Pitching schedule

The Orioles announced their probable pitchers for Monday's Grapefruit League day-night, split-squad doubleheader.

In the Orioles' day road game against the Rays, the team will start Alfredo Simon, followed by Brad Bergeson, Zach Phillips, Miguel Socolovich and Pedro Strop.

And in the team's night home game against Pittsburgh, the Orioles will start left-hander Brian Matusz. He will be followed by Kevin Gregg, Matt Lindstrom, Troy Patton, Darren O'Day and Oscar Villarreal.

Showalter indicated that most position-player starters would not make the trip to Port Charlotte.

Around the horn

Right-hander Tommy Hunter (lower back strain), scheduled to pitch two innings in a 'B' game Tuesday, is also slated to pitch three innings in another 'B' game scheduled for Sunday. The Orioles also host the Red Sox at home that day, but would prefer to pitch Hunter in a controlled environment on the complex's back fields. … Fifteen days into spring training, the Orioles released left-hander Dennys Reyes, a non-roster invitee, for failure to report to camp. … Left-hander Tsuyoshi Wada (left elbow discomfort) threw long toss from 120 feet on Sunday. He is scheduled to do the same Monday and additionally throw from a half mound. "He's really close to getting on the mound," Showalter said.