Tyson Gillies is working his way into Major League Baseball. Although the Seattle Mariners prospect is deaf, his sharp play in single-A ball is getting some serious attention. The center fielder batted a hefty.322 in the leadoff slot with 66 runs scored and 25 stolen bases for the High Desert Mavericks out of Adelanto, California. The 20-year-old Gillies recently played in the World Team at the annual Futures Game in St. Louis. The Vancouver native wears hearing aids and was born with 35% hearing in one ear and 50% hearing in the other. Here's a video of Tyson in action.