Greenbank has won medals at Olympics, World Championships, European Championships and Commonwealth Games.
But he did not make selection for last year’s World Championships in Japan, and has had to battle his way back into the Team GB squad.
The Cumbrian swimmer has done so as the relative ‘old hand’ in the backstroke, with the rise of 21-year-old Morgan, who set a new British record in the 100m backstroke in the Olympic trials, and Jonathon Marshall, only 19, also making the team.
So Greenbank has a different perspective as he heads to his second Games.
“This Olympics is massively different compared to the last Olympics,” he told BBC Look North.
“The last few years have been full of ups and downs – as they were before Tokyo – but I like to think I have bounced back well.
“There’s plenty more competition in the country with obviously Ollie Morgan and Jonny Marshall making the team as well.
“But it’s good. It keeps me on my toes. I really enjoy the competition.”
