Rovers have circulated the names of players available for loan moves to League One and League Two clubs.

Sam Hart is one player who could be allowed to leave following the arrival of Cardiff City full back Greg Cunningham. on deadline day.

The transfer window for Championship clubs may have closed, but the window for teams in tiers three and four runs until September 2.

Tyler Magloire joined Rochdale last week, with Scott Wharton joining Northampton last month, while several other youngsters are attracting interest.

Mowbray revealed: “We sent a circular out to the League One and League Two clubs, and National League

“We have told them to come and watch, these players might be available.

“What it does is stretches your underneath.

“The more you expose them to games the more they can come through quicker.

“In my two-and-a-half years here, thinking back we had (Willem) Tomlinson, (Lewis) Hardcastle and (Lewis) Travis in central midfield, and all of those are gone and you’re past the cycle of that group.

“Even last year when they did so well, it was (John) Buckley in central midfield, and now he’s moved on so it will be a young team coming through.

“Yet you can see young Jack Vale looks really exciting and the younger we put them in, although it might be really difficult, they can grow.

“They played Burnley in a behind closed doors game and drew 2-2 coming up against a £15m centre half and two international players up front and did pretty well.”

Left back Hart signed for Rovers from Liverpool in the summer of 2017 but his last appearance for the senior side came in December of that year.

Since then he has had two separate loan spells with Rochdale before finishing the season with Southend in League One where he impressed in 18 games.

He was one of Rovers’ stand-out performers in pre-season however, until injury struck at Bury, with the hamstring problem picked up on that night still ruling him out of action.

Rovers moved to bring in another left back in Cunningham, and having previously said Hart would be sticking around, the increased competition in that area could see him now move out on loan.

That will be a decision in which the player, who signed a new 18-month contract in January, will have a say in though.

Mowbray added: “He didn’t surprise us in pre-season how well he played, but he showed the benefits of going out on loan in the way he’s developed and matured.

“I thought he did exceptionally, yet he’s still out injured.

“We couldn’t wait to create competition, so if Greg does as well as we hope he’s going to do then there will be genuine competition at left back.

“If there’s an opportunity and the phone rings for Sam Hart then that is something I can discuss with him and what his views are, whether he stays and competes with the left backs we’ve got or he feels it will be more beneficial for him to go out on loan and play 30 or 40 games this season.”