The 45-year-old was playing blackjack at Grosvenor Casino on West Quay Road on a Saturday night when he landed the £21,073 win on the Ace King Suited Progressive Blackjack game. He and his wife had simply been enjoying "a bit of weekend fun." The winner, who wished to remain anonymous, said: "I never expected to win so big. Conor Toner, general manager at Grosvenor Casino Southampton, said: "It’s always exciting to see a guest land a big win, but this one was especially memorable. "You could feel the whole table willing that final card to appear and when it did, the reaction was fantastic.