Heskey has earned 62 caps for England, travelled to three FIFA World Cups and played for Leicester City, Liverpool, Birmingham City, Wigan Athletic and Aston Villa in an 18-year career.
His strength and ability to hold the ball up would dovetail with the youth and energy of van Egmond's squad.
The striker had been linked with moves to Stoke, Norwich and Spanish side Espanyol - and also an emotional return to Liverpool, where he won the FA Cup and UEFA Cup in a four-year spell.
But he recently insisted he was fit enough to play immediately for a new side. "I feel as fit and hungry as I have done in a long time and have been training everyday throughout the summer," Heskey said.
"As has been reported, I did receive a number of offers during the transfer window but didn't feel like any of them were the right opportunity for me at that time."
-nzherald.co.nz