By Braden Chalker A place in the Copa America semi-finals is up for grabs this weekend when Colombia take on Panama at State Farm Stadium. Colombia are coming off a group stage in which they collected seven points with wins over Paraguay and Costa Rica and a draw against tournament favorites Brazil. The South American nation will need James Rodriguez to turn back the clock once more if they are to get past a tricky Panama side. Panama, on the other hand, shocked Copa America viewers as they joined Uruguay from Group C in reaching the quarter-finals. After their defeat to Uruguay, Thomas Christ…