They say balding occurs in 25 percent of men before they hit 30 and 40 percent of men before 35.
Even professional athletes are not immune to the genetics of hair loss.
Although they're blessed with the ability to play their respective sports extremely well, they're just like the rest of us when it comes to dealing with receding hairlines.
Fact is, there is a very large pool of horrible hairlines in sports.
As tempting as it is to mention the hair plugs that were previously on Jeff Van Gundy's head, there's just no room for that in this list. Only active athletes are included.
Here are 20 of the worst athlete hairlines in sports...