The £30million signing from Liverpool last summer could be sacrificed by the new Eagles manager as he looks to raise the money to make his own moves in the transfer market.
Palace would want all of the fee they paid the Reds before they considered a sale but if that sort of offer does come in, Allardyce might sell in order to land his own targets.
The former England boss has seen a £9.5million bid for Leicester winger Jeffrey Schlupp turned down and is also keen on Norwich midfielder Robbie Brady.
Defender Richard Brindley could be in contention to feature for Barnet in the Sky Bet League Two match against Wycombe.
AC Milan manage Gennaro Gattuso feels Jack Wilshere has the quality to play at any club of his choosing.
Paris Saint-Germain manager Unai Emery believes the 2-1 win over Angers on Wednesday represents another important step towards claiming the Ligue 1 title.
Andres Iniesta says he will make a decision on whether to stay at Barcelona or move to China by the end of April.