The Miami Open got more bad news on the eve of the tournament. Serena Williams announced she is withdrawing following oral surgery. The 23-time Grand Slam champion has won the Miami Open a record eight times, the last one in 2015. She reached the semifinals of the recent Australian Open before losing to eventual champion Naomi Osaka. “I am disappointed to withdraw from the Miami Open because of recent oral surgery,” Williams said. “Miami is a special tournament for me because it’s my home and I am sad I won’t be able to see the incredible fans this year, but I look forward to coming back soon….