Alastair Cook's men will take to the field at Trent Bridge tomorrow for the start of the opening Test, and with expectations high over their chances of adding to what has already been a summer of British sporting success. Saker is familiar with both camps as an Australian national and a member of England's coaching staff since 2010.
"I think psychologically we're in a much better place, the only danger is that we'll be too laid-back," he told the Independent.
"The Aussies will fight, there's no doubt about that...but if we score the runs we're capable of then we'll win comfortably.
"The players are really up for it. You just have to be around them and you pick up on that excitement, and I've got a little added incentive because it's the Australian group and I know quite a lot about them."
Saker feels England's bowlers could prove the difference between the two sides, with the likes of James Anderson and Stuart Broad set to lead the attack.
"They're great to work with because they've got a lot of talent," he said. "We've got swing, bounce, pace and a great spinner so we've got enough variation to call on different things. A left-arm quick would tip it off but that's being greedy!
"The way Jimmy leads our attack is exciting; Stuart on his day is as good a bowler as anyone, (Steven) Finn's so exciting because he's got that pace and bounce."
In contrast, Australia's bowling line-up does not match the standards of their opponents, according to Saker.
He said: "As a bowling group they've got some good pace, they've got variation, but they're not that experienced in English conditions."
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