LOS ANGELES: CHRIS Brown has been accused of assaulting a woman in a club, leaving her with injuries that required surgery.  The R&B singer reportedly shoved 24-year-old Deanna Gines – who has filed an official complaint with police – during a night out at the Heat Ultra Lounge in Anaheim, California, on Saturday.  It’s claimed the alleged victim was pushed to ground, tearing ligaments in her right knee.  Brown – who is still on probation for brutal attack on ex-girlfriend Rihanna in 2009 – was quick to rubbish Gines’ accusations.  He tweeted: “I don’t usually comment but I didn’t do anything.”–SN