Rovers could welcome back Anthony Stokes to the squad for Saturday's trip to Birmingham City.
The former Celtic striker made a goalscoring return to action earlier in the week for the Under-23s and may come into contention for the St. Andrew's clash.
Adam Henley and Elliott Ward remain on the sidelines, but Charlie Mulgrew is hopefully closing in on a return after the international break.
"Anthony Stokes is back now," said the manager on Thursday. "He played in the reserve game the other night and did well and showed a good attitude in terms of his work-rate and his application.
"He's trained hard this week and he is getting closer to getting back to being 100% fit.
"Charlie Mulgrew is on the way back, he's trained with the medical staff, he's not trained with the group yet but I'll be hopeful that he can now start to step up and get some training next week.
"If everything falls into place I'd be hopeful that coming out of the international break that Charlie wouldn't be too far away from being able to play."
Coyle believes that his squad is finally delivering the sort of competition for places that he has craved.
With as strong a side as seen all season, the manager feels that those out of the team are putting pressure on the ones with the shirt and that has lead to improved displays.
He added: "We look and we know that we have competition for places, there are players chomping at the bit wanting the play.
"I'm pretty sure that Danny Graham is desperate to start games, as is Wes Brown and those lads who have missed out in the 18. That is good for us as whoever comes in has to be ready to step in and show their quality."
Supporters who haven't yet got their tickets for Saturday's match at Birmingham City can pay on the day at St. Andrew's.
Tickets will go off sale at 4pm at Ewood Park this Friday but after that fans can gain admission to the game by visiting the cash turnstile at the away end at Birmingham.
Tickets are priced at £20 for Adults, £15 for Seniors 65+, £15 for Students (must produce a valid NUS card at the turnstiles), 13-18’s £10 and Under 13’s £5.