London Irish boss Brian Smith tipped Jonathan Joseph to star for England in the autumn internationals after his stellar performance in the 39-17 win over Northampton.
Joseph - who made his England debut in South Africa in the summer - scored the first try, then played a role in carving out scores for David Paice and Topsy Ojo before Jamie Gibson wrapped up the bonus point.
It was Northampton's first defeat of the season and Smith said: "I would like to see JJ get another crack.
"He is a class act and his talent is well regarded by the English coaches. And with Mike Catt (the former London Irish player and coach) now part of the England set-up, he knows what JJ can do."
Northampton director of rugby Jim Mallinder was furious with his side: "There was no intensity there from us, our accuracy in just about everything we did that first 60 minutes was awful.
"Mentally, if you underestimate any team in the Premiership then you will get turned over and that is what happened. Mentally we weren't up for today's game and that showed.
"As a group we are all very disappointed. We embarrassed ourselves.
"The talk in the week had all been about how difficult this game was going to be, how desperate London Irish would be, how we should not be looking to give their outside backs any ammunition."
"We had to get our set piece right and defend with intensity - all those things we talked about didn't happen this afternoon.
"We embarrassed ourselves today, we let ourselves down with a performance that was not acceptable."