Flavia Pennetta took down second-seeded Maria Sharapova 3-6, 6-3, 6-2 at the BNP Paribas Open in Indian Wells because of hard work like this. Pennetta returns what could have been a winner, returns an overhead smash, and probably would've returned a second overhead smash if an official hadn't gotten in her way. That withering look she gives the official is great.

[Tennis Channel]