Reasons why Serena should be Player of the Year:

Serena won the Bangalore Open (Tier II)

Serena won the Sony Ericsson Open - Miami (Tier I)

Serena won the Family Circle Cup - Charleston (Tier I)

Serena was a Wimbledon (Grand Slam) Singles Finalist

Serena and Venus won the Wimbledon Doubles Title

Serena and Venus won the Olympic Gold Doubles medal

Serena won the U.S. Open (Grand Slam)

* Serena regained #1 ranking for four weeks *
(Set record for longest gap between stints at #1 for any player; 5 years, 1 month)