Rangers boss Mark Warburton believes that the pair are happy at Ibrox.
The Borussia Dortmund player is said to be unsettled at Signal Iduna Park.
The midfielder has been linked with a move away from Liverpool this summer.
Allardyce is currently the front runner for the vacant England job.
Arsenal need to bring in a top centre-back this summer.
The Magpies' preparations for their Championship campaign have suffered a setback.
Garry Monk was appointed the Leeds United head coach last month.
Another set-back for West Ham as Colombian target Carlos Bacca rejects a €30 million move
Mark Warburton's Glasgow Rangers side will return to Fir Park for their Scottish League Cup game on Saturday.
Celtic lost against Lincoln Red Imps FC in the Champions League qualifiers on Tuesday.