The ex-Real Madrid man, who played under Allardyce at Bolton Wanderers, clearly has fond memories of his old boss.
Allardyce steered Sunderland to safety with a game to spare this season after some impressive January signings including Bayern Munich defensive man Jan Kirchhoff and Bordeaux attacker Wahbi Khazri.
Campo, who was enticed to Bolton Wanderers from the Bernabeu in 2002 by Allardyce, has hailed his former coach's managerial ability and claimed that it is his man-management style which makes him such a success in the dugout and in the transfer market.
The former Spain star told 888sport: "Sam taught me everything I know when I made the move from Spain to England, and he taught me how to adjust to life in the Premier League.
"Sam is a great coach and I have great memories of him. His man-management was the reason that he was able to attract the top talent such as Fernando Hierro to Bolton."
Campo played under Guus Hiddink and Vicente del Bosque at Real and Luis Aragones at Valencia, but clearly holds Allardyce in high esteem.
His highlighting of the 61-year-old's man-management seems warranted, with Allardyce having got the most out of stars such as Jermain Defoe to lead the Black Cats to safety.