By Alan Baldwin ABU DHABI (Reuters) – Triple world champion Lewis Hamilton has taken inspiration from U.S. tennis great Serena Williams as he prepares for a Formula One title showdown with Mercedes team mate Nico Rosberg this weekend. Serena, along with her older sister Venus, has attended grands prix recently and Hamilton said he had been honored to spend time with the 22-times grand slam singles champion. “I was actually with Serena last week in LA … she came out to Mexico (for the race) which for me was a real honor to have someone of her power, someone who has achieved so much,” Hamilton told reporters in Abu Dhabi.