US professional poker player Doyle Brunson has launched a $700 million cash bid for WPT Enterprises, owner of the World Poker Tour television show. The unsolicited bid, made by Brunson with a team of financial backers, offers a 100 per cent premium over WPT\’s closing price of $17.75 on Thursday. On the news, WPT stock surged almost 50 per cent on Friday. WPT Enterprises, which was founded in March 2002, went public in August last year at $8 a share. Doyle “Texas Dolly” Brunson has won the World Series of Poker a record 10 times, including two consecutive wins. A former basketball professional with the then Minneapolis Lakers, in 1978, Mr Brunson wrote the best-selling Super System, a guide to Texas Hold\’em poker play which still sells 14,000 copies a month.