I'll give him a 4. I think Rovers made it a very difficult game for him, but he didn't put his control on their tactics early enough. Still don't see how Johnson got a yellow (Edun's I do understand as he did grapple their player). Didn't shirk the red to their player to be fair, plus identified an outstanding tackle by one of their defenders in the box, which was very similar to a penalty we were awarded at MK Dons back in September.
Just never quite had the required control over the match