Mass United’s quest to qualify for the 100th edition of the US Open Cup begins on Saturday. The Riders will be facing the 2012 USASA National Amateur Cup champion Battery Park Gunners at Madison Park High School in Roxbury (Boston) at 1:30pm. While the match up will be no easy task, United has momentum after a very well played 4-3 win in the Amateur Cup over Middlesex FC last weekend. The winner of this match will go to the semi-finals to play the winner of Middlesex FC/E. Providence Sports, which is being played on Sunday.