The mstery trialist is expected to feature at some point this evening as Preston take on Oldham in the Lancashire Senior Cup Final at the County Ground in Leyland.
Simpson was believed to be upset at the way the press were leaked the name of Sosin and has decided to keep his new trialist a secret. The boss has admitted he needs to bring in more firepower and has hinted that more signings could be on the way to Deepdale before the August transfer deadline.
In the meantime Geoff Horsfield is expect to sign for Championship outfit Barnsley in a move rumoured to be around £300,000. Billy Davies has also captured Luton striker Howard for £1 million whilst Rob Hulse who scored against Preston in the play off second leg has completed a move from Leeds to join Claude Davis at Sheffield United for £2.2 million.