A total of 20 players made the trip to Italy on Monday morning, but they travelled without club captain Ross McCormack.
The United striker only took part in some of Thursday's training and missed Friday's session and has missed the trip.
Another notable absentee was Rudy Austin, although the club and player are hoping he will be able to join the group in the coming days.
Also missing from the trip are injured duo Alex Mowatt and Scott Wootton. Paddy Kenny and Marius Zaliukas also remained at Thorp Arch.
Included in the travelling group are youngsters Lewis Cook, Jake Skelton, Chris Dawson and Lewis Walters.
Also included in the travelling group was trialist defender Andre Blackman.
Full Travelling Squad
Alex Cairns
Sam Byram
Jason Pearce
Tom Lees
Charlie Taylor
Stephen Warnock
Ross Killock
Aidy White
Jake Skelton
Luke Murphy
Michael Tonge
David Norris
Zac Thompson
Lewis Cook
Chris Dawson
Noel Hunt
Dominic Poleon
Steve Morison
Matt Smith
Lewis Walters
- See more at: http://www.leedsunited.com/news/article/nv8o3fzu81iv10run6o4rcuzn/title/pre-season-players-arrive-in-italy#sthash.Zg8NYWoS.dpuf