Formula One record world champion Lewis Hamilton is part of a consortium trying to buy Premier League club Chelsea from sanctioned Russian owner Roman Abramovich, his spokesperson confirmed dpa on Thursday. “We can confirm Lewis has joined Sir Martin Broughton’s bid,” the spokesperson said following media reports. Broughton is a British billionaire who previously spent a brief spell as chairman of Liverpool despite being a Chelsea fan. US tennis star Serena Williams is also part of Broughton’s broad consortium which includes Olympic champion and current World Athletics chief Sebastian Coe. Abr…