"At the end of the day, he can say he doesn't like me as a player and he doesn't think I can do this, that or the other. That's fine. That's his opinion. But don't ever say I'm not trying because people can see how much I put in on the field. I just think it's rude and way off the mark.
"Even if I make mistakes or don't play very well, there's never a game in my career where I haven't put 100 per cent effort in. I've got 71 caps and name a time when I haven't put 100 per cent effort in. It's the same for my team-mates. Look at last weekend — it's probably over-trying that's our problem rather than under-trying.
"You can see how much it means to me and the others to play for England. So I can't understand someone swearing and saying I don't put effort in. I don't use Twitter any more for that reason because it's not really feedback — it's abuse."
Meanwhile, England forwards coach Steve Borthwick issued a retort on Tuesday to Warren Gatland's claim that Wales and England are 'poles apart' after his side's successful summer tour, in contrast to England's recent slump. "I know Warren, I respect him as a coach and he can have his opinion," said Borthwick.
"But we went to Argentina (where Wales won back-to-back Tests) last year and won 2-0, and our recent record against Wales has been good."