Attacker through on goal yesterday and goes around the GK who trips him inside the penalty area , clear penalty which I duly awarded. I notice a defender between the goal and the attacker so not an obvious goalscoring opportunity in my eyes as the defender could of intervened at some point which makes my mind up about the colour of card I show. I pulled the GK to one side and showed him the Yellow card to which not even the attacking team commented on but something nagging at me that it should of been Red. The reaction of the attacking team of not one screaming for a Red card made me feel I got it right but we always come off having doubts.