Charles 'Chuck' Mercein (born April 9, 1943) is a former professional American football running back in the National Football League for seven seasons for the New York Giants, Green Bay Packers, and New York Jets. He was drafted in the third round, the second player drafted by the New York Giants, the 31st player taken overall in the draft. He led the Giants in rushing in his second season and after an injury was claimed on waivers and joined the Green Bay Packers midway thru the season. As a professional, Mercein is best remembered for his performance in the Packers' game-winning drive in the 1967 NFL Championship Game, known popularly as the "Ice Bowl". Mercein rushed six times for 20 yards, and had two receptions for 22 yards in the "Ice Bowl"; 34 of his total yards were achieved on that game's final and famous 68 yard drive. He played for the Packers through 1969 and then with the Jets before retiring in 1971. Prior to being with the Jets, he was in Washington Redskins training camp but was released on September 1, 1970.