The era of the top three is considered by many the best era tennis ever had and it's not a surprise when three players that all have a case for being considered the greatest player at the same time. When you throw in an iconic player in Andy Murray as well you have some of the biggest competitors to ever play with the yellow balls.
Since 2004 no player finished as the year-end No.2 outside of Djokovic, Federer, and Nadal. Put into perspective it's an unbelievable thing among the sea of unbelievable things they have done over the past 15 years. That streak however ends this year with Daniil Medvedev finishing the year as the 2nd best player in the world.
The Russian had a tremendous year solidifying himself as the best after Djokovic and with a pivotal 2022 season coming up Medvedev aims for the number one spot. There is a lot of work to be done but the Russian believes himself capable and he will give it his best. After all, it was him who broke the streak that lasted 15 years.