Mark DeRosa

Mark DeRosa underwent a radiofrequency catheter ablation Thursday at Northwestern Memorial Hospital. The object of this procedure was to correct the second baseman's irregular heartbeat. Dr. Alan Kadish performed the procedure.

Dr. Stephen Adams said that the procedure was a success and that Mark is now recuperating. Barring some unexpected complication, DeRosa could return to spring training in Arizona as early as Sunday and begin working out by the end of the week.

Cardiologists To Examine DeRosa

Mark DeRosa's irregular heartbeat may have frightened fans more than it frightened him. He says the problem has happened before and that he can normally treat the symptoms through the use of breathing exercises. Cub management wants someone else to take a look at the problem. Cardiologists will examine the second baseman on Tuesday in Chicago. The odd heartbeat happened as long ago as DeRosa's high school days. More recently, he says the problem got his attention when it lasted longer than usual.

Mark DeRosa

In all the good news about Wednesday's victory over the Cardinals, one piece of data may have escaped Cub fans. Mark DeRosa did not play, and it wasn't because he doesn't like baseball.

DeRosa is suffering from tendinitis in his left hamstring muscle. Until this problem goes away, DeRosa can't play. Because he is the defensive sparkplug for the Cubs, this is more than a small problem.

Thus far this year, DeRosa has played at first base, second base, third base, shortstop, and right field. When someone else can't play, Mark plays for them. Someday we'll probably see him pitching, although he can't very well catch at the same time.

Hurry back, Mark. Your team needs you.