The frustration was building for Tony Mowbray hence his double switch on the hour mark which helped turn the game in Rovers’ favour.

Rovers had dominated the chances in the first half but not found a way through an injury-hit Hull City who hit the bar in the early stages of the second period.

But Mowbray sent on Ben Brereton and Dominic Samuel on the hour, and from the moment Darragh Lenihan opened the scoring with 17 minutes to go, Rovers were in control.

Armstrong scored a stunning second in the 79th minute before substitute Samuel netted his first since December 2017 seconds later to round off a satisfactory night for Rovers.

The win moved them to eighth in the Championship, three points outside the top six.

“I made the changes pretty early in the second half because I was frustrated, it wasn’t happening,” Mowbray said.

“They had started quite brightly in the second half.

“I played Danny because I knew their injury issues meant they would have young centre halves and thought we could bully them, almost like League One days.

“But that ploy doesn’t work for long spells, it worked well early on and we created a lot of chances first half with it, but I felt we were getting frustrated.

“It stopped working so we had to get some fresh legs on, start running in behind them and stretching the game.

“That’s what we did. We scored from a corner, Armstrong blasts a wonder goal in and delighted for Samuel to finish the game off for us.

“Ultimately I felt it was the right result for us on the balance of play.”

Rovers bounced back from Saturday’s defeat to Fulham, their first loss in 11 Ewood matches, to record a fourth successive win over the Tigers.

The manager added: “We tried to bring it up as a big game, we know they’ve had some injury problems at the back, and we’ve had injury problems up front.

“But at home we were desperate that it wasn’t going to be another one of those nights of a draw, or a tight defeat. I thought the intention was there.

“First half was generally good, we could have been 2-0 up inside two minutes, Adam could have scored inside 20 seconds. But I thought they intension was there.

“The goals rewarded the possession and the endeavour. They had a 10 minute spell at the start of the second half but apart from that we were frustrated, but the goals reflected the balance of the game.”

Armstrong could have scored inside 10 seconds, and had two more chances in the opening five minutes, and Rovers started strongly.

But after a goalless first period, they struggled in the early stages of the second before their late show.

He added: “First half I was left frustrated because that’s what we were missing, the key was the magic of Dack on the edge of the box, Rothwell driving past someone like they weren’t there, Holtby being tight with the ball and finishing one of those chances that came our way.

“But it’s a great credit the way they keep pushing, keep working.”