His on-court behavior is not new, either.

After his 6-4, 6-4, 7-5 victory, Sampras explained his on-court behavior.

The prevailing sentiment in Obama's ballplaying inner circle is that on-court behavior reveals character.

Roddick, however, is also known for his funny on-court behavior and witty answers off-court in interviews and press conferences.

"We emphasize this result because this is the one on-court behavior that we expect to be unaffected by referee behavior."

Childs's off-court presence often contradicts his on-court behavior.

She was affectionately but accurately known as Little Miss Poker Face for her dispassionate on-court behavior.

It has been quite a run for Gasquet, who was struggling with his confidence and on-court behavior only six months ago.

They never look into the family box between points like so many others, younger and older, whose on-court behavior is like that of a child on some dysfunctional play date.

Roddick seems to believe this as well, if his fist-pumping and crowd-stirring and all around frenetic on-court behavior (what's with the constant shirt-tugging, anyway?)