Rovers have stepped their search for a left back before the transfer window closes on Friday with Leeds United’s Barry Douglas the most likely candidate.

It has been a position the club have looked to strengthen in a bid to add competition for Amari’i Bell who has played every minute of the six competitive fixtures so far.

Douglas is a player of interest to the club, and Rovers’ plight could be helped by Watford, who were also in for the Scot, having seemingly turned their attentions to Joe Bennett of Cardiff City.

Leicester City youngster Luke Thomas is another possibility should nothing materialise with Douglas who is free to leave Leeds on loan before Friday’s 5pm deadline.

Thomas, aged 19, made the Leicester City squad for their opening day game at West Brom but hasn’t featured in the Premier League this season, having started three games last term, and was a player Rovers looked at earlier in the window.

But Douglas is the club's primary left back target as they look to make at least one more signing before the window closes.

Douglas has won promotion twice from the Championship, in 2018 with Wolves, and 2020 with Leeds.

The 31-year-old has played 45 times for Leeds since joining in 2018, but just once this season, that coming in an EFL Cup tie with Hull City.

He is into the final year of his deal at Elland Road and Rovers are looking to take advantage of that, though any deal would likely be a loan move initially.

It would be the second successive summer that Rovers have loaned a left back, should they get a deal over the line, having brought in Greg Cunningham on deadline day in August 2019 from Cardiff City.

He went on to play 10 times before injury in October cut short his stay at Ewood Park.