Rovers have injuries to assess on their return from the pre-season training camp in Austria. 

There was disappointment for Arnor Sigurdsson as the Iceland international picked up a recurrence of the groin problem he had prior to his move in Thursday’s training session. 

That kept him out of the friendly double-header with TSV Hartberg, meaning the 24-year-old is yet to feature since his move to Ewood Park last month. 

The hope is that was more precautionary than any longer-term concern, though there is a bigger worry over the hamstring injury picked up by Jack Vale. 

The striker, who missed the final two months of last season with an ankle problem, will now have to be assessed following his setback. 

Rovers were also forced into a late change to their team for the first of the two friendlies, with Under-21s captain Pat Gamble, a centre half, drafted in at left back. 

That came as Rovers didn’t risk Harry Pickering who sustained a knock to his ankle, but not one that Jon Dahl Tomasson feels should pose any concern. 

He said: “Harry twisted his ankle and he would have played if was a league game.

“We didn’t want to take a risk.

“Arnor felt his groin. It’s the same groin that he had problems with during his time with Iceland, so I hope it’s not too bad.

“I always feel sorry for a new boy when he’s not on the pitch, because you want to see him and he wants to do things that I want to see.

“We’re disappointed for him and hope it’s not too bad.

“Jack got a muscle injury. He’s coming back from a long injury that’s seen him be away, and that’s disappointing.”

Midfielder Adam Wharton didn’t travel to Austria, having also missed the Accrington Stanley friendly, but is expected to feature when Rovers are next in action, either against Fleetwood Town on Friday night, or the behind closed doors game against Barnsley a day later. 

However, Niall Ennis is still getting up to speed following groin injuries during his time at Plymouth Argyle, with no timescale yet as to when he may be involved. 

“Adam could have easily been involved with some parts of the training this week, we just didn’t want to take a risk with him,” Tomasson added.

“Niall had a lot of things from his Plymouth time so is someone who we need to build up and make him strong. It can take time.”