Marcel Granollers (right) and Horacio Zeballos (left) are chasing their fourth team title of 2020.

Marcel Granollers (right) and Horacio Zeballos (left) own a 23-6 record in 2020.

Marcel Granollers and Horacio Zeballos own four tour-level titles as a team.

Marcel Granollers (right) and Horacio Zeballos (left) have reached four finals from as many clay events this year.

Marcel Granollers and Horacio Zeballos own a 3-1 record in clay finals this year.

Marcel Granollers and Horacio Zeballos are attempting to lift their second ATP Masters 1000 trophy this week.

Marcel Granollers and Horacio Zeballos triumph in Rio de Janeiro, lifting their third ATP Tour title as a team.

Horacio Zeballos and Marcel Granollers sprint into the quarter-finals at the Rio Open presented by Claro.

Marcel Granollers and Horacio Zeballos are through to the doubles semi-finals at the US Open.

Marcel Granollers and Horacio Zeballos beat Robin Haase and Wesley Koolhof in the Montreal final to lift the Coupe Rogers trophy.

Marcel Granollers and Horacio Zeballos do not face a break point en route to clinching the Montreal title on Sunday.

Horacio Zeballos and Marcel Granollers will play Robin Haase and Wesley Koolhof in the Montreal final.

Marcel Granollers and Sergiy Stakhovsky made their team debut a memorable one by winning the Hall of Fame Open.

Marcel Granollers, the 2008 Houston champion, battles past fifth seed Taylor Fritz in three sets on Monday.

Marcel Granollers celebrates his seventh ATP Challenger Tour title in Da Nang, Vietnam.

Marcel Granollers and Rajeev Ram capture their maiden team title at the Rolex Paris Masters on Sunday.

The world’s top eight doubles teams attend the 2017 Nitto ATP Finals Official Launch, presented by Moët & Chandon, at the Tower of London.

Ivan Dodig and Marcel Granollers lift the trophy at the Swiss Indoors Basel.

Ivan Dodig, left, and Rohan Bopanna celebrate advancing to the Montreal final on Saturday.

Marcel Granollers (L) and Ivan Dodig are through to the quarter-finals at Roland Garros.

Marcel Granollers and Ivan Dodig advance to the doubles final in Rome.

Marcel Granollers (L) and Ivan Dodig are through to the quarter-finals in Rome.

Dodig/Granollers saved all four break points en route to winning the Rotterdam final.

Jack Sock y Marcel Granollers se llevan el trofeo de Basilea.