Brentford rattled the woodwork and had an effort cleared off the line, but Rovers deserved to edge a game that gave them a third straight home win for the first time since January.

The hosts are within a point of the top half whilst Brentford are three away from the top six.

Tony Mowbray made four changes from the weekend win over Barnsley, including Danny Graham for the injured Sam Gallagher.

Brentford recalled Christian Norgaard and Jan Zamburek.

The first shot on target produced the first goal and it was a beautiful one too.

A series of quick passes turned defence into attack and in the final third, Rovers were clinical as Joe Rothwell fed Stewart Downing on the left, and his perfect cross found Dack who swept home his ninth goal of the season.

Brentford almost hit back within minutes when Henrik Dalsgaard met Mathias Jensen's searching free-kick but could only divert beyond the far post, and soon after, Ollie Watkins latched onto a ball beyond the Blackburn defence before shooting tamely at Christian Walton.

Jensen set up another opportunity with a wonderful ball but Zamburek's volley was wayward, and at the other end, Graham put a free header over the crossbar when he ought to have done more with Downing's pinpoint cross.

The Bees went mightily close at the start of the second half through as Said Benrahma whipped a 20-yard free-kick over the wall only to see the ball crash back off the post.

They went closer still in the 56th minute when Jensen's corner was met by Pontus Jansson but Corry Evans cleared his goalbound header off the line.

Blackburn remained dangerous on the counter and Adam Armstrong's left-foot drive stung the palms of his former team-mate David Raya, who gathered at the second attempt.

Chances arrived thick and fast as the game reached its conclusion. First, Norgaard whistled an effort just past the far post, before Rothwell missed a glorious opportunity, firing straight at Raya from 12 yards.

The Spanish stopper made a fine save 17 minutes from the end, showing great reflexes to tip Armstrong's close-range effort over.

Substitute Bryan Mbeumo shot straight at Walton soon after but after scoring nine in their previous three away games, the Bees finally failed to sting their opponents.