The Italy international fullback was signed by Pardew at Newcastle in 2011, and went on to represent the Magpies 82 times in the Premier League before returning to Inter last January.
Santon’s exit from Newcastle came only one month after Pardew left the club for Palace, although during his last season at St James’ Park he struggled with injuries and featured sparingly.
His return to Inter, however, hasn’t been a particularly successful one, and after making just nine Serie A appearances at the back-end of last season, he could be on the move again.
A move to Watford was previously mooted by Sky Sports, but after a lack of enthusiasm a potential deal broke down, and now fresh reports claim Pardew wants to reunite with him at Selhurst Park.
Santon is equally comfortable playing in either fullback positions and can even play as a winger if needs be, starting his career as a right-sided attacker with plenty of pace and energy.
Palace have made four new signings this summer but none of the incoming players are defensive players, suggesting that Santon would be a welcomed competition to the current back four.
His status as a full international with previous Champions League experience makes him a relatively high-profile player and further proof of the direction Palace are heading under boss Pardew.