Vaesen will come in for his first start since the defeat at Sheffield Utd. last November.
The extent of Bennett's thumb injury is not known and the club are waiting for the results of scans.
Bruce told the club's official website: "Even is it isn't broken, it is highly unlikely that he will play at Bradford because he is still feeling very sore.
"He came for a ball and got a kick on his thumb during Saturday's game."
Bennett missed the first two months of this season after breaking his thumb during pre-season.