Gareth Ainsworth felt his Wycombe were ‘taught a lesson’ but admits his side played a part in their own undoing.

Ainsworth’s Ewood return was one to forget from the moment Tyrhys Dolan was fouled by Joe Jacobson which allowed Adam Armstrong to open the scoring in the 14th minute.

That was the first of three goals in 19 minutes, as Dolan and Armstrong made it a 3-0 lead by the break, with Derrick Williams on target before Armstrong completed his hat-trick late on.

The final two goals came after the Chairboys were reduced to 10 men after Darius Charles was shown a straight red card for hauling down Armstrong when clean through.

Wycombe’s best spell of the match came with the score at 0-0, but Thomas Kaminski was rarely troubled on his home debut.

Ainsworth’s side are playing their first ever season in the second tier, after promotion last term, and he admits this was a learning curve his players must learn from.

He said: "I was totally shellshocked being 3-0 down. They took their chances well. I thought after 10 minutes we were well in the game and then they proved what I've been thinking about this league, it's going to be so tough. You've got some real clinical finishers, some real good players.

"At the end of the day it was mistakes from us that cost us which was disappointing.

“I knew this would be a learning curve early on in the Championship, and as long as we learn, we'll be doing the right thing.

"We were in the game, but three chances for Blackburn and they scored all three and that's how it's going to be in the Championship.

"It's a positive this has happened now because I really want the boys to know what it's like to play in this league.

"We've been taught a bit of a lesson here. That clinical prowess in front of goal blew us away."