Kevin Pietersen has joined up with the rest of the England squad in Australia after being granted compassionate leave.
His team-mates arrived in Australia ahead of the Ashes series on Friday but Pietersen was given extra time following the death of a friend.
He arrived on Sunday, too late to join his England team-mates in their first training session of the tour.
But he was able to bat in the nets at Perth's WACA ground on Monday, to begin his preparation for the first Test which starts at Brisbane on November 21.
England fast bowler Chris Tremlett said: "He's in good spirits. It's nice to have him rejoin the camp.
"We know how destructive he can be. He's capable of taking any situation away from any opposition.
"We're hoping Kevin will be fine when it comes around to going out there."
England's first warm-up match will be on Thursday against a Western Australia XI.
The hosts will be captained by left-arm spinner Michael Beer, who has played two Tests for Australia.
James Allenby, the Glamorgan all-rounder, is likely to play.
The match clashes with Western Australia's opening Sheffield Shield game against Victoria starting in Melbourne on Wednesday. Test players Shaun Marsh, Ashton Agar and Marcus North are all playing in the WA Shield side.
WA Chairman's XI (from): Michael Beer (capt), James Allenby, Burt Cockley, Matt Dixon, Ryan Duffield, Marcus Harris, Chris Lynn, Mitch Marsh, Luke Towers, Tom Triffitt, Ashton Turner, Andrew Tye.
Who will be England's leading wicket-taker in the forthcoming Ashes series in Australia?