I injured my toe playing soccer, the opponent and I kicked at the ball at the same time and ended up kicking each other toe to toe. After the game I was expecting a red or purple bruise, but it was blue. Not a bluish purple but more of a cyan color. It hurts like other toe injuries I have had but the coloring is what I find odd. It is now 4 days after and the color has not changed like a normal bruise. Should I be concerned or no?