HI, I Had A Football Game Last Saturday And Whilst

HI, I had a football game last Saturday and whilst getting a tackle, I fell on the other guy's cleat and now have a big purple bruise on my thigh. I iced it when I got home for a few hours and the next day too. It was swollen at first but the swelling went down after icing. The bruise does not concern me much, however there is a white round spot in the middle of the bruise which makes me a little worried. It doesn't hurt much unless I put pressure. Is this anything I should get checked out?