Blackpool boss Lee Clark has signed Manchester United midfielder Joe Rothwell on loan until the end of the season.
Newcastle midfielder Moussa Sissoko is happy to stay at the club, despite rumours he is a target for Arsenal.
The Dutch left-back has agreed his third spell with the Eredivisie club having also spent time in his homeland in the second half of the 2011/2012 season, along with all of the last campaign.
Van Aanholt, 22, is highly rated at Chelsea, who on Friday signed midfielder Marco van Ginkel from Vitesse, but he would face tough competition for places with Ashley Cole and Ryan Bertrand.
A statement on Vitesse's official website read: "Patrick van Aanholt will play again next season at Vitesse.
"The 22-year-old defender is hired for a season from Chelsea Football Club. Van Aanholt begins his third season in Arnhem."