With Peter Beagrie still a couple of weeks away from a return, manager Brian Laws will have to ask someone to play out of position.
He has the option of bringing in a central midfielder, such as Alex Calvo-Garcia or could elevate Lee Ridley into the starting lineup.
Ridley would play a more defensive role, or he could play left-back with Andy Dawson moving into midfield where he played in his youinger days - although Laws would be unlikely to play around with such a solid defence.
Last Saturday's 2-1 win over Leyton Orient saw United upto third in the league table, only to drop back down to fifth as a result of midweek matches - but Laws reckons that the motivation to get back up into the automatic promotion places will help his side.
"At least we have had a taste of third spot, albeit for a short period," he told the official site today.
"The players are very focused and want to get back into that position as quickly as we can.
"If we can continue the same away from from the last three games then we will be a very difficult side to beat."
Bristol Rovers are expecting a bumper crowd after slashing their prices for the game down as low as £1 for some home fans.
A similar initiative by the Pirates earlier in the season saw 9447 attend to watch their game against Kidderminster Harriers.
Rovers go into the match 22nd in the table, and are only kept out of the final relegation spot thanks to the alphabet - with Exeter City on exactly the same amount of points, and the same goal difference.
The Grecians though do have two games in hand.
