Not every boxer is able to turn amateur wins into professional titles. But on their way to proving nothing is impossible are Hackney's Lawrence Okolie and Croydon's Joshua Buatsi.
Both were planning to show that four years after Olympic success in Rio they could take on the world and come away with the belts.
Coronavirus has put those ambitions on hold but has given them time to reflect on how far they've come.
"A lot of the time you don't know what you've got until it's gone or put on pause... I've won some fights but I don't think I really cherished it," said Okolie
These two London boxers are used to seeing viruses hit sport. In 2016 at the Rio Olympics they were both in Team GB in the year the games were overshadowed by the zika virus.
But nothing could stop Buatsi becoming an Olympic bronze medalist.
Today both boxers are unbeaten champions in their careers as former amateur team mates they praise each other's success as professionals.
I would say out of everyone in the team he was the least experienced. But if we look at ourselves as professionals I'd say Lawrence has got the furthest out of us - so this is time to bring light to what he's done.
Buatsi is probably the most down to earth and genuine person I've come across in boxing. But when it comes to fighting, anyone will tell you something goes on... and he changes, becomes relentless and a 'me or him' mentality and it's always Buatsi coming out on top.
Success has changed both their lives and given them financial stability. But it can be tough at times like this when there isn't money coming in each week.
If you have some good sponsors and people around you who believe in you that can help you through.
We're grateful of the position that we're in. We're also thoughtful that there are other fighters and athletes that really are struggling.
These boxing friends have used lockdown to reflect in and outside the ring since Rio. When sport returns they aim to win their respective world titles just in time to inspire the next generation of Olympic hopefuls.