Boston midfielder Stephen Vaughan has been ruled out for the season with ankle ligament damage.
He is set to be sidelined for two months after twisting his ankle in Saturday's loss against Hartlepool.
Boss Steve Evans told the club's official website: "Stephen has been excellent in his short time with us.
"At Walsall a few weeks ago, he was the best player on the park by miles and on Saturday against Hartlepool he was excellent. He will be missed."