Wrestling icon and actor John Cena has joined forces with Microsoft mogul Bill Gates and his wife Melinda Gates for a good cause: Rotary, the global network working to end polio. In Atlanta, Gates explains to Cena why he considers it a priority to completely eradicate polio from the globe. Cena also draws out some personal details from Gates. Spoiler alert: Bill Gates is a competitive guy.

You crushed polio in the Americas, you crushed polio in the Western Pacific, you crushed polio in Europe -- then polio fought back hard. So we needed to bring more muscle into the game: Bill Gates came onboard.