Mark Warburton's Glasgow Rangers side are preparing for their first season back in the Scottish Premiership.
Beattie was named as the club's first-team coach on Friday.
It is feared that Vertonghen is set for an extended spell on the sidelines after suffering an ankle injury on international duty.
Alan Pardew has proven his quality as a manager over the past few seasons.
Sunderland are not willing to match Yann M’Vila’s outrageous wage demands.
The Scottish Premiership side are currently on a pre-season tour in Slovenia.
Leicester City are currently in negotiations to sign Brazilian striker Luan.
Hal Robson-Kanu speaks highly of Tottenham Hotspur and Wales international defender Ben Davies.
The striker has impressed in action at Euro 2016.
The winger has completed a move from Newcastle United.