India, May 23 -- Cristiano Ronaldo recently had tests carried out on him by Whoop, a tech company which focuses on fitness trackers and health monioring devices. He is also the company's brand ambassador. The tests done on him consisted measuring physiological date like heart rate variability.

Speaking on the Whoop podcast, the 40-year-old revealed his biological age, and appeared to be surprised. "I don't believe it's so good: my age is 28.9 years," he said.

"That means I'm going to be playing football for another 10 years!"

The podcast also further revealed that Ronaldo does 17,000 steps a day, and he wasn't surprised by that. "That's how I live my life: I always move, football or playing with kids. So, I am not surprised," he said....