World Cup-winning Wallabies coach Bob Dwyer has made the extraordinary claim that Michael Hooper is the worst openside breakaway in Australian Super Rugby at the moment, and should not be picked for the England Test series in June on current form.

Hooper is the only Waratahs player to have been on the field for every minute of their three losses and two wins this season. The 24-year-old was in career-best form for the Wallabies at last year's Rugby World Cup, but Dwyer has slammed Hooper for failing to inject himself into games and show his worth when the Waratahs need him most.

"I reckon at the moment he is number five openside flanker in Australia. He's gone from being an absolutely outstanding player to what I think is a total non-event," Dwyer said. "I do not know what's happened to him. It's got me stumped. How can he go from being one of the world's most significant players to what he is now?"

There is no denying Hooper was one of the reasons the Wallabies made the World Cup final last year against the All Blacks at Twickenham, but a number of other young, and old, No.7s putting their hand up for Australian selection might force the Waratahs captain to prove why he is still one of the best back-rowers in the country.