lol. The nationalities a the side gives you a big clue. Like Finland for Nieminen.
Try this one. You have to name every Wimbledon winner. You can just put last names instead of full names incase you didn't know
http://www.sporcle.com/games/g/wimbledon
I got 96 out of 106. Not bad. You get a lot for a couple of names though, like Federer, Sampras etc...