Currently in Brisbane as part of a week-long training camp, the Bendemeer Bullet told cricket.com.au he has done as much in the nets as he can.

"It takes that time out in the middle now to get that extra couple of per cent up to one hundred," Hazlewood said.

"I've been off the long run for a month now, and I'm as ready to play as I can be."

His departure for the UK comes as the chorus grows that he should already be over there.

After suffering a back injury in January that ruled him out of the remainder of the summer, he was twice overlooked for the Australian squad for their title defence.

Arguably the most contentious omission, especially when Kane Richardson was called-up to replace Jhye Richardson, veteran journalist Robert Craddock said on The Back Page on Tuesday night that Hazlewood is the guy that the Aussies need.

"They're the single-most under-rated players in World Cups - everyone thinks you need big hitters, you need spin bowlers. No, no, no. Steady seam bowlers will win it for you," Craddock said.

"J Hazlewood - he should have been there."

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The man himself admits he has watched little of the tournament so far.

"I'll sit down at night and watch a couple of overs but I'm trying to steer clear of it a little bit," Hazlewood told cricket.com.au

"The more you watch something, the more you probably miss it. So I'm just trying to pretend it's not on, to a degree."

Part of Australia's 2015 triumph, his frustrations have been compounded by the timing of the injury.

"It's a tournament that only comes around every four years, and just purely the timing of the injury - that's probably the most frustrating thing," he added.

"To be fit now while it's on, it's hard to take that as well I guess."

Hazlewood is part of both the Australia A one-day and four-day squads and is set to make his return via the one-day arena.

The Aussies will play five one-dayers before three red-ball fixtures, culminating in an 'Australia v Australia A' clash in Hampshire starting July 23, which will serve as a final selection trial for the Ashes squad.

He is expected to be part of the Ashes squad.

Admitting that his "body was fried" during the last Ashes series in the UK four years ago, Hazlewood is fresh and raring to go.

"I know I can do a great job when I'm physically pretty fresh and that's how I'm going to enter this Ashes, so I'm looking forward to it," he said.