MESA, Ariz. - Cubs second baseman Mark DeRosa was taken to a local hospital for precautionary measures early Saturday afternoon after reporting a rapid heartbeat and having some difficulty breathing.
An ambulance arrived at the team's Fitch Park facility at about 12:15 Mountain Time. DeRosa was sitting up on a stretcher when he was wheeled off by paramedics.
According to the Cubs staff, DeRosa has a history of irregular heartbeats. The problem surfaced during Saturday's workouts when DeRosa was taking fielding practice.
DeRosa turns 33 Tuesday.
"Mark's doing fine," said Cubs manager Lou Piniella. "He came in with a rapid heartbeat from doing things on the field and (was) having a little trouble breathing. So they called in the medical team. He's completely stable. But better be safe than sorry. With an irregular heartbeat and so forth, they sent him to the hospital to test him and evaluate him."
The Cubs said a team doctor was present at Fitch Park and tended to DeRosa, who had an EKG on the premises. They also said DeRosa felt faint but never lost consciousness.
Cubs second baseman Ryan Theriot said DeRosa began having trouble during fielding drills.
"It's something he's dealt with since he was a little bitty dude," Theriot said. "I think, personally, it's one of those things that scares you when it starts to happen. I've had the same scare a time or two in my life. Everybody experiences it to a certain extent."
Theriot said he alerted team trainer Mark O'Neal when he noticed DeRosa having difficulty.
Last June 20, DeRosa suffered an ocular migraine during a game at Texas. He came out of the game after losing partial vision in his left eye. He returned to the lineup the next night.