Rovers boss Tony Mowbray was pleased to see his players come through Saturday's first friendly of the summer unscathed.
A total of 22 players were given a 45-minute run-out at Barrow, as goals from Craig Conway and Danny Graham saw Rovers kick off their pre-season preparations with a 2-1 win.
After 10 days of gruelling training at Brockhall, the manager expected his squad to be 'heavy-legged', but he was pleased with the workout and the way they overcame their National League opponents.
"I'm pleased that they've all got through it and there's no injuries," said Mowbray, who watched the game from the Holker Street stands.
"It's the first game of pre-season and you've got expectations of them, yet really they played pretty heavy-legged and pretty tired.
"They've run their socks off, so it was a good test.
"I have to say thank you to Barrow for giving us a good test and making it difficult.
"They asked questions of us, like lots of teams in League One are going to do. They put lots of balls in our box and we dealt with it ok, apart from trying to play offside for their goal."
All four of Rovers' summer signings - Peter Whittingham, Richie Smallwood, Bradley Dack and Ben Gladwin - featured in the friendly and Mowbray is confident they will all have big roles to play in the upcoming campaign.
"They all did fine," he added. "They're going to be fine, I know they are.
"I've watched them in training and they're working really hard.
"I think that first game always catches your legs out. You think you're ok because you're doing controlled exercises in training, looking quite sharp and bright, and then it comes to a game where you've got to stretch your legs out and it's quite tiring, especially on a hot day like today.
"They'll be fine. They'll get judged over the 46 games of the league season."