Mudrats manager Peter Taylor said: "He was just settling in. He's done outstandingly well. I knew he was a good player but he's even better than what I thought.
"We'll just keep our fingers crossed and hope it's not too bad. We do have other options for left-back and it could be we'll have to have a look at them."
Our sister site Hull City Online has suggested that Damien Delaney would be elevated to the Tiger's first team in Dawson's absence.