Source: Team_Talk
Rovers will miss big kick-off
Grella is on his way back after a hamstring injury while Dunn has had thigh problems and neither has featured much in Rovers' warm-up games.
"They have missed most of the pre-season games and are out of the running," Allardyce told the Lancashire Telegraph.
"Dunny and Grella definitely won't play a part - unless we pick up loads more injuries - because they have only had 45 minutes between them."