 During a spring training game on March 12, 2008, leading off the 2nd inning in a spring training game against the Tampa Bay Rays, Duncan reached first on a fielding error by third-baseman Evan Longoria.However, he continued on to second, where second baseman Akinori Iwamura caught the ball well before Duncan arrived.Duncan slid, raising his left foot up and spiking Iwamura high and inside of his right thigh.