Preston have handed a trial to Polish striker Lucasz Sosin.
North End boss Paul Simpson is eager to strengthen his squad further before the new season kicks off and will run the rule over Sosin during training this week.
The forward is currently with Cypriot champions Apollon Limassol, and scored during their UEFA Champions League defeat to Cork last week.
He is eager to challenge himself in England though, and Simpson has heard a lot of positive reviews.
"Lukasz is a player who has done well in the league he is in and he has been recommended to us," Simpson told the club's official website.
"We will take the next few days to assess whether he is a player who can add anything to our squad this season."
Goalkeeper Chris Neal, meanwhile, may be set to stay at Preston after his proposed loan move to Oldham hit a snag.
Neal had been tipped to tie up a temporary switch to Boundary Park but, with Andy Lonergan struggling with injury, there has been a change of plan.
"Andy has been feeling some soreness in his knee, so we need to keep a close eye on him this week and see how he gets on," Simpson explained.
"Oldham have asked about taking Chris on loan but at this moment we can't let him go with doubts over Andy, so we will assess the situation later on in the week and a decision will be made then."