Marcel Granollers and Horacio Zeballos will make their fifth consecutive appearance at the Nitto ATP Finals. The Spanish-Argentine duo advanced to the championship match in 2023 and the semi-finals in 2020 and 2021, falling to the eventual champions on each occasion.

The veteran doubles players have enjoyed a standout year at the ATP Masters 1000 events. They claimed trophies in Rome and Montreal, and reached the final at Indian Wells.

Granollers and Zeballos also performed well at the majors, advancing to the semi-finals of Roland Garros and Wimbledon. The Spanish-Argentine duo reached the final in Auckland and Buenos Aires.

Granollers will make his ninth appearance at the Nitto ATP Finals and try to secure his second crown after lifting the trophy with Marc Lopez in 2012. It will be Zeballos' fifth appearance and the team is 8-8 together.