Some of tennis ' biggest names , including Roger Taylor , have been felled by mono . Extensive training , matches and tournaments may make players more vulnerable . Managing the disease can be difficult , says an expert who has worked with athletes with MS . The men 's tennis tour says cases of MS have n't been unusually high .
Some of tennis ' biggest names , including Roger Federer , have been felled by mono . Extensive training , matches and traveling may make players more vulnerable . Diagnosing the illness can be difficult , says an expert who has worked with athletes with mono . The men 's tennis tour says cases of mono have n't been unusually high .