Harrah's Entertainment might be accepting bids for the 2,520-room Rio All-Suite Hotel & Casino in Las Vegas, according to a report in Bloomberg Businessweek on Friday. The story quotes anonymous sources with knowledge of the situation and names Starwood Capital Group LLC and Colony Capital LLC as potentially interested buyers. As of press time, Harrah's wasn't returning calls for comment; according to the Las Vegas Review-Journal, the company isn't commenting because it is in a quiet period following a recent debt offering. The Rio property sits just off the Strip, behind Caesars Palace, another Harrah's property. Harrah's recently acquired the Planet Hollywood Resort & Casino, which is on the Strip next to other Harrah's resorts.