Britney Spears appears to be back on her feet after an injured ankle forced her to cancel two shows in Las Vegas over the weekend – she was spotted playing beach football in Malibu, Calif., on Sunday. Spears took a nasty tumble onstage during her Piece of Me show on Wednesday night, and doctors advised her to rest up, prompting her to scrap shows scheduled for Friday and Saturday. Spears even posted a photograph of herself wearing a cast online on Friday, joking, “This boot was made for walking.” The singer is expected to be back onstage when her residency at Planet Hollywood resumes on Wednesday.
