Cristiano Ronaldo just challenged the world to beat him in a core crushing ab workout, in the first installment of Nike's all-new 'Living Room Cup'.

As Nike continues to encourage the world to stay home during the coronavirus pandemic, the 'Living Room Cup' is a digital workout series that allows anyone to compete against pro athletes through weekly fitness challenges in the comfort of their own home.

First up, one of the world's greatest athletes is putting his legendary abs to the test by seeing how many core crushes he can do in 45 seconds. CR7 scored a phenomenal 142 reps and the world now has seven days to beat that score.

Dedicated workouts to help provide a competitive advantage during each week’s challenge will be made available on the Nike Training Club app, and players can share their results on their Instagram profiles using the hashtags #playinside and #thelivingroomcup.

Challenge two of 'The Living Room Cup' will drop on April 12th.