Speaking to BBC Sport, Lampard said: "I bumped into him on holiday a few months ago, I was in the same hotel on the beach and fortunately his sun spot each day was a little down from me. I made sure to stay away from him because he was in incredible shape. So I gave him a little bit of distance.
"I pulled him over for a picture with my son because of the incredible player he's been and I quickly put my t-shirt on and had a nice picture with him."
He added: "I noticed he was going to the gym twice a day with his personal trainer. Just shows you his dedication to what he does. I was sipping a beer watching him and gave him a ripple of applause as he walked back!"