in the 27th minute hadn't helped the teams cause.
"I certainly feel it affected the result," Ferguson said after the 2-1 defeat at London Road.
"Joe couldn't see properly and has gone off to hospital. It would have to be serious to get him off.
"It is another game we did not deserve to lose but we are seeing all the time that small margins make a big difference at this level.
"We were guilty of over-celebrating our goal. It was as if we had won the World Cup and as a result we lost concentration and ended up with the ball in our own net less than 60 seconds later."