Sections of the British media have questioned Shelvey's mental strength, pointing to the periods of inconsistency that undermine his superb passing game.
Yet, for Elliot, who hailed Shelvey as former England captain Steven Gerrard's heir apparent, the midfielder's move to Newcastle could see him become a lynchpin for club and country for years to come.
"Jonjo can be anything he wants to be," the keeper told the club's website (www.nufc.com).
"Liverpool let him go too early in my opinion. He's the only player I've played with that could come close to Steven Gerrard."
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"He's got everything you need. Basically, it's in Jonjo's hands -- it's up to him. If he wants to go on and play 50, 100 times for England, then he can. I think he's got that mentality."
(Reporting by Simon Jennings in Bengaluru; editing by Amlan Chakraborty)
