Dawson is expected to be out for around 2-3 weeks, leaving boss Billy Dearden with plenty to think about, as he also has to cope without Lee Bell who will be suspended for four games.
Dearden told the Mansfield CHAD on Wednesday "It is disappointing that two of your midfield players who did so well in your first win of the season last weekend are now out for three or four weeks," he said.
"I will be making a few calls tonight and trying to bring someone in.
"You have to wait seven days after the transfer window closes to bring in a loan player. But, with us playing Sunday, we can sign them Saturday morning before noon."