Adil Rashid could be handed a shock Ashes chance when England announce their extended 16-man squad for the series on Monday.
The Yorkshire spinner is expected to challenge Monty Panesar for the second spinner's role over the summer after impressing during the ICC World Twenty20.
However, Rashid's inexperience means that England coach Andy Flower is remaining cautious about throwing the 21-year-old into the cauldron of the Ashes.
"He hasn't played a Test yet so it would be a big ask, but I like him and like his bowling," Flower said. "He's shown great skill and poise and he's learnt a lot in the few games he's played in the Twenty20.
"We wanted to expose him in the West Indies (during the winter), but that never materialised, so getting the chance to do so here will have been very good for him."
Rashid's county team-mate Michael Vaughan is unlikely to be included in Flower's provisional set-up.
The 34-year-old was a victorious captain when Australia last toured England in 2005, but has not played for his country since stepping down as skipper last summer.
The right-hander has struggled to find his best form during the current domestic season, managing only 159 first-class runs at an average of 19.88 with a highest score of 43 against Worcestershire.
Andrew Flintoff looks set to be included after proving his fitness in two LV County Championship matches for Lancashire and Ryan Sidebottom, who has made his own recovery after an Achilles problem, is also expected to feature.
Steve Harmison and Ian Bell, who has scored consistently for Warwickshire, will also be hoping for places in the party.
The 13-man squad for the first Test is due to be revealed on July 4.