England have summoned Essex paceman Tymal Mills and Nottinghamshire seamer Harry Gurney to train with the Ashes squad in Australia.
Mills, 21, was due to fly Down Under anyway as part of the England Performance Programme's winter tour but will now depart earlier than expected.
The duo leave on Sunday to join England's Test squad in Perth the following day to provide the batsmen with a high-quality left-arm seamer in the nets.
The tourists have plentiful fast bowling resources in a squad that will number 18 when Tim Bresnan is fully fit, but no left-armers.
Australia, though, could be set to unleash Mitchell Johnson in the series.
He has a chequered past in the Ashes but appears to be near to his best form and Mills is probably the closest England have available in terms of action and pace.
Mills tweeted: "Very exciting/busy few days/weeks ahead!!! Flying off to Aus on Sunday to help The England side with their prep for the ashes!".
England captain Alastair Cook added: "We don't have any left-armers in the squad and there's a possibility that we're going to face a couple of left-armers in the Ashes series.
"It's great practice for them, great experience for them, but they're very much there to bowl at us."