Tom Carroll is having a trial with Derby ahead of a possible move to the East Midlands club.
The midfielder’s QPR contract expired this summer and he was offered a new deal.
West London Sport revealed last month that he had rejected the offer and was leaving.
He joined Rangers on a one-year deal last summer and made 22 Championship appearances before his season was ended in January by a knee injury.
Carroll returned to action for Rangers’ development side towards the end of the campaign and was an unused substitute for the first team’s final two matches.
Carroll had a spell on loan at Derby in 2012.