Ravel Morrison has returned to parent club West Ham from Cardiff City on compassionate leave.
Brighton boss Sami Hyypia is weighing up a move for former France captain Alou Diarra.
Newcastle are one of the clubs keeping tabs on Roberto Rosales, according to the agent of the highly-rated FC Twente defender.
Magpies manager Alan Pardew is believed to have identified the signing of a right-back as one of his priorities for the summer as doubts continue to surround the future of Danny Simpson.
Rosales is one of the players to have been linked with a move to Tyneside after impressing with his performances for Twente in the Eredivisie this season.
The 23-year-old's representative, Claudio Barrios, says Newcastle are in the running to land the Venezuela international but has warned there are other interested clubs.
"Newcastle and FC Porto are two clubs that are closely following Roberto," Barrios said in the Evening Chronicle.
"There is also interest from two German and two Spanish clubs. But the transfer market will be open for a long time and I remind everyone that most deals will be completed in August."