KEY BISCAYNE, Florida — World No. 1 Serena Williams has won the 2009 WTA Tour Player of the Year award as well as the Doubles Team of the year honors with sister Venus at a ceremony held at the Sony Ericsson Open.

Serena Williams, wearing high heels despite a knee injury, was all smiles when picking up her award Wednesday. She won the Australian Open and Wimbledon in 2009, was a semifinalist at the US Open and a quarterfinalist at the French Open.

The Williams sisters won the 2009 Australian Open, Wimbledon, and US Open doubles titles as well as the doubles crown at Stanford. (AP)