Defending

When I played amateur Sunday league football when I got older I played centre half and I always had it in my head whoever I was marking you ain’t getting the ball , I always wanted to get to it first , made sure I got in their face and didn’t give them a minutes piece , we are so powder puff at defending it’s awful , bullied by a crap st Johnstone team , it doesn’t matter what level of football you play but their is no bite in our current defence that would scare anybody , we need a couple of solid no nonsense defenders who take no crap any thoughts would we should consider ?