Gillingham’s desire to progress past the group stage in the Bristol Street Motors Trophy could hinge on tonight’s clash at Priestfield. Crystal Palace bring their under-21 team to Priestfield for the second of three games in Southern Section Group D, where two from four teams progress to the knockout stage. The opening games of the group saw Palace youngsters beaten 1-0 at Stevenage and the Gills lose 2-1 at home to Peterborough United. It’s left both teams needing to at least avoid defeat tonight (Tuesday). “We’ll put merit on that competition,” said Gills assistant Anthony Hayes, when lookin…