MEGHAN Markle and Serena Williams may seem like an unlikely duo but the pair has bonded over their “endless ambition”, love of hot sauce and “girly” stuff to become fiercely staunch pals. Whether it’s new mum Meghan dropping everything to jet over to New York to catch Serena in the US Open final – or Serena forking out an eye-watering £64,066 to throw a dream baby shower – the pair enjoy a fairytale friendship. The BFFs have spoken openly about their relationship – with Serena Williams revealing last year that they were both “relying on each other a lot” to deal with the pressures of fame. But how did the pair become so close? The Duchess of Sussex, 38, and tennis champ Serena, 37, first met at a 2010 Super Bowl party. Back then Meghan was still an actress in the TV show Suits and had not yet met husband-to-be Prince Harry. But Meghan gushed how she and Serena never once spoke about their careers during their first meeting – but giggled throughout the game and became fast friends. “We hit it off immediately, taking pictures, laughing through the flag football game we were both playing in, and chatting not about…