Separated at Birth Too?

Too "Fed" up by the top 3 players of the world in my posts? I've got a couple of others if you didn't like my previous twin discoveries of men's tennis.  They are quite widely know as they still ranked among the top 50 players and have ranked as high as top 10 before.

Jo-Wilfred Tsonga                              Muhammad Ali

James Blake                                      Vince Carter

Nikolay Davydenko                          Michael Stipe of R.E.M.

Ivan Ljubicic                                      Zydrunas Ilgauskas

John Ishner                             Freddie Prinze Jr.

I know, I know... bald guys who look alike are easier to find