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.