The midfielder was unavailable for Monday night’s 1-1 draw with Shrewsbury due to a one-match suspension, but he would have missed the game in any case due to a shoulder injury.
Roberts suffered the problem in last Friday’s clash with Torquay before being sent off and it will rule him out of the game against the Brewers.
Michael Cummins deputised for Roberts against the Shrews and is likely to get the nod to start once again.
Full-back Dale Tonge is not ready to return as he is still struggling with a foot injury so he will not feature.
Long-term absentees Andy Liddell and Paul Warne also remain sidelined.