Following a 2pm inspection of the pitch at The Memorial Stadium, match referee Martin Atkinson has called for a second inspection to take place at 4pm before deciding if the game can take place.
Heavy rain in the south west has caused problems with the pitch but it is hoped that by 4pm Rovers' grounstaff will be able to make the pitch playable.
Should the game be played the winners will not know their 4th Round opponents because the game against Barnet and Swindon at Underhill has been postponed.