Who is Maya Joint? She hopes to spoil Serena Williams’ Wimbledon party

LONDON — Maya Joint’s cheering section at Wimbledon for her match of a lifetime against Serena Williams will be small. The Michigan-born Aussie said she’ll have her tennis coach, fitness coach, agent and … her mom. That might be it. Joint, 20, was drawn to face the seven-time Wimbledon champion in the first round and