The Official Online RBS 6 Nations Store is open. The store has everything you need to get behind your team during the RBS 6 Nations, plus the store is now fully stocked with a much wider range of rugby merchandise.
He was rested for England’s summer tour to Argentina however and he has scored just two tries in his last 17 internationals – in the historic win over New Zealand last autumn and the RBS 6 Nations victory against Scotland earlier this year.
But Farrell is convinced that Ashton has returned to top form.
"Everyone has a slight slump but he's been able to get back on the horse. There are a lot of things that have improved in his game, but the main thing is the intent,” said Farrell.
"You can see the fire and the hunger back in him. He wants on get on with it without making any excuses. He is letting his rugby do the talking and that is what we all want to see.
"Without a shadow of doubt he is one of the best finishers in the game. He knows what he must work on, but his X-factor is his ability to score tries and be in the right place all the time. He has shown intent in his game and he has never lost that this season.
"Even though he has adapted his game a little bit, whenever there is a break, whether he scores it or not, he is there. You want a wing with try-scoring ability, no doubt about that."