“I know I’m probably the last person you expected to see here tonight." 😮 Serena Williams shocked the crowd at the International Tennis Hall of Fame to induct her longtime rival-turned-friend, Maria Sharapova. Serena and Maria's history on the court is a masterclass in how competition can be a positive motivator. “There are only a few players who challenged me to be the very best every single time we stepped out on the court. Maria Sharapova was one of them," Serena said. "Whenever I saw her na