Story highlights Hamilton says Williams "inspires" him

Faces 12-point deficit in title decider

(CNN) As Lewis Hamilton attempts to pull off an "impossible" comeback in the Formula One title race this weekend, the British driver will take inspiration from an unlikely source.

Sunday's "Duel in the Desert" at the Abu Dhabi Grand Prix will determine whether Hamilton wins his fourth world title -- or Mercedes teammate Nico Rosberg claims his first.

Hamilton has whittled the German's lead to 12 points , and the defending champion has revealed that tennis superstar Serena Williams has taken a keen interest in his progress this season.

"She came out to Mexico (last month), which for me was a real honor to have someone of her power, someone who has achieved so much there," the 31-year-old told reporters in Abu Dhabi.

"She's really interested in cars now and she has asked me a lot of questions about how it feels and all the technical things about Formula One."