Quite a Difference Between "Seven" and "Sevens"

Nível 12 : 600/1,200, 1,800 ante

Button Jon Turner opened for 3,200, called by big blind Joseph Ranciato and they took two and one respectively. Ranciato checked, Turner bet 4,000 and was quickly called. Turner announced "sevens." Ranciato expressed surprise: "Seven?" but was corrected and found that his pair of fours () was good for the pot.