Roberto called it an innocuous challenge. Obviously the lad who said it was a red card challenge on here, knows better. LOL.
...cheers Matey, I remember doing mine chasing down a keeper and the CB caught my knee with his side on when my foot was anchored to the ground. No great collision, absolutely innocuous. Only realise the pain when you go off a straight line. One of those things by the sound of it, just need to get on with it.