You can call them mavericks, bad boys or great characters, tennis do serve up a lot of eccentric players and here is Tennis365's Top 10.
The Murrays being a brilliant sporting family is nothing new with Andy just the latest to scale the heights in sport.
Petr Korda was no slouch in his heyday, but he falls in our One-Slam Wonder category with his Australian Open title.
Twenty years ago today, that would be January 31, 1998, Martina Hingis won her fourth Grand Slam.
For most of his career Rainer Schuettler was a journeyman, yet he accomplished something that several established players failed to achieve.
We all remember the Grand Slam winners, but several players came oh so close only to fall at the final hurdle.