Tennis superstar Serena Williams stepped out in Miami this weekend wearing a black cast decorated with studs and glitter. The injury-prone Serena has been hobbling around on crutches since July after she stepped on broken glass in a restaurant. She initially received 18 stitches to close the wound, but then infection set in and she required surgery to clean the wound. Now I’m hearing Serena has osteomyelitis — a serious bone infection — in her right foot, which explains the cast.

Osteomyelitis can result in great loss of bone, but is treatable if caught early. The injury has caused Serena to miss all the summer tennis tournaments, including the US Open. Her No. 1 World ranking now a thing of the past, she is ranked fourth in the world. Get better, Serena!

Photos: GOT

Singer Rihanna posted this adorable Twitpic to her Twitter page over the weekend. It seems she’s reverted to her childhood in order to cope with the emotionally draining loss of yet another loser boyfriend. Isn’t she cute? As you know, RiRi reportedly kicked Matt Kemp to the curb after rumors of his cheating ways got back to her. As soon as he was gone, Rihanna’s best friend, Melissa, stepped back into her role as counselor and confidante. [Thanks Karen!]