Yellow Cards Or Reds的意思|示意

黄牌出示或红牌 I think about the Arsenal player (Eduardo) and I'm scared sometimes to do skills because some players do unbelievable fouls and the ref protects the defender, not the skilled player! It's very disappointing and I'm thinking a lot about changing my game. When referees don't give penalties, yellow cards or reds, it's difficult to play.