Tony Mowbray doesn't expect Darragh Lenihan to be fit for this Saturday's first home match of the season against Doncaster Rovers.
The Irishman suffered a foot injury last weekend at Southend United, and whilst x-rays have come back all clear, repeated scans haven't yet to fully get to the bottom of the issue.
The manager feels that the injury is only a minor one, but one not worth exaggerating so soon into the season.
"I think is a really, really complicated one," said Mowbray.
"There is no news really other than it is a fifth metatarsal. Something that everybody talked about five years ago.
"It is just a bit complicated, he's had three or four scans now and specialists are trying to work out whether it's an old injury that is probably bruised and has a bit of fluid around it.
"So we'll wait and see, it'll be what it'll be. There’s no need to take a chance on a player with an injury that’s a bit delicate. That is why you have a squad of players.
"Hopefully it is not such a bad one and Darragh will be back in the not too distant future."
One player who is expected to start on Saturday is captain Charlie Mulgrew.
The defender was taken off during Tuesday night's win over Coventry City, but the manager revealed it was just a precaution.
"He just got a knock so we didn't take a chance at 3-1," added Mowbray.
"It was no problem, just a precautionary decision to take him off."
Tickets for Saturday's match againts Doncaster Rovers are currently on open sale priced from £20 for Adults, £13 Concessions, £7 Under-18s and Under-12s from £5. Book online now at www.eticketing.co.uk/onerovers/, buy instore at Ewood Park, or via our call centre on 01254 372000.