By Braden Chalker Colombia have their sights set on reaching the Copa America semi-finals when they take on Panama this weekend at State Farm Stadium. Colombia have just about lived up to expectations with their performances in Group D, as they topped the competitive group with Brazil, Costa Rica and Paraguay. Nestor Lorenzo’s side have looked like a well-oiled machine that doesn’t plan on slowing down anytime soon as they’ve managed 26 straight matches without a defeat. The only change we’ll see from Lorenzo’s 4-3-3 system is whoever will replace Crystal Palace midfielder Jefferson Lerma sinc…