Marcel Granollers, alongside his partner Horacio Zeballos, competed in the ATP Finals in Turin, Italy, during several years including at least 2020, 2021, 2022, and they have also qualified for 2023 and 2024 as well. This ongoing participation highlights their strong performance in doubles tennis over the years.
Here is an image of Granollers and Zeballos in action at the ATP Finals:
For more details, you can check the source: ATP Tour News.