England's Luke Wright says Afghanistan are 'no mugs'

England batsman Luke Wright says Afghanistan are "no mugs" ahead of their game in the opening game of the 2012 ICC World Twenty20 in Sri Lanka.

England face Afghanistan - who are without a world ranking - on Friday with Wright admitting the reigning champions will have to "be at their best" in order to progress through the tournament.

England go into the competition with growing confidence after beating Australia in a warm-up match on Monday..