The Grosvenor Casino, located on Osborne Road in Southsea, is reportedly closing August 9, 2015. A post on Wednesday June 24, 2015 indicated  the Portsmouth casino may be shutting down. The news was confirmed on insidermedia Friday. When the casino closes 50 people will lose their jobs. These workers are encouraged to apply at other casinos the company owns, including the Gunwharf Quays location (pictured). A Rank Group  spokesman said: “We never take the decision to close a club lightly, but after careful consideration we have taken the decision to close our Osborne Road casino with effect from the 9th August. “We…