MK Dons 2-1 Blackburn
Midfielder Luke Chadwick scored twice to book MK Dons a place in the third round of the League Cup at Blackburn's expense.
Chadwick calmly slotted home Jon Otsemobor's cutback to score his first just after half-time.
And he made it 2-0 when he tapped in after Daniel Powell's shot had been spilled by Rovers keeper Jake Kean.
David Goodwillie headed in Fabio Nunes's cross but it proved just a consolation for Steve Keane's side.
Blackburn were lacklustre throughout the game, with MK Dons deserving of their victory.
The home side controlled the first half and Blackburn goalkeeper Kean produced good saves to deny Powell and Chadwick, while Charlie MacDonald clipped an effort just wide.
Rovers' Edinho Junior had a low shot cleared off the goal-line by Shaun Williams in the visitors' best chance of the first half.
Ultimately, Chadwick's double in the second half gave League One side MK Dons a lead they never looked like throwing away, even when Championship side Blackburn scored with eight minutes remaining.
MK Dons boss Karl Robinson: "It was comfortable, I'm very pleased because it was a very professional performance.
"We looked very accomplished and we move on from here with tremendous mental strength and belief in ourselves.
"The first five minutes they started OK but once our two midfield players got to grips with it we were the better side.
"We looked good but I just don't want to go over the top because it's a cup game and we need to move on from here very quickly."
Blackburn boss Steve Kean: "I never thought we played well, I felt that we were a little bit predictable in the end.
"The ball wasn't sticking from the front and it was difficult for young Edinho because he's not got the physical presence yet, but he was working his socks off.
"I think we could have helped him a bit more by, when the ball was going up to him, giving him an angle that he could get onto that wasn't a straight one.
"Obviously we made a few changes because the older players in the squad, by the time we get to Saturday, if they had played it would have been five games in 14 days.
"So it was an opportunity for some players who have not played as many minutes as others to get the chance and it was up to them to take it."