He finally hung up his boots a week before his 39th birthday in 2005.
Zola told The Sun: â€śIt is possible for him to go on as long. Why not?
â€śFirst of all, you need to want to do it. As you get older the physical side of your game goes down but you understand it, improve and master it.
â€śYou dedicate yourself to keeping the body alive. For me, it was yoga.â€ť
The Hornets boss would love Lampard to be at Vicarage Road next season but realises the worldâ€™s top clubs will be queuing up for his signature.
Zola added: â€śHe is more than welcome at Watford!
â€śI hope he stays, for Chelseaâ€™s sake, but Iâ€™m sure there will be many teams wanting him.
â€śIf we are in the Premier League and he wants to come to us, Iâ€™m sure it would not be a problem.â€ť