For former Liverpool defender John Arne Riise, the unrelenting search for athletic greatness didn't end when he hung up his boots back in 2016.
His drive to compete on the biggest stage in the beautiful game may have dissipated, but as an elite athlete, the motivation to challenge yourself both physically and mentally never goes away.
It's not as easy as turning off the competitive switch in your brain. Yes, athletes retire, but the fire is always in their bellies to push athletic boundaries and satisfy their desires to be the best. It's a high that the cut above will always crave.