Marcelo Melo (middle) and Lukasz Kubot (top) enjoy a first-round win at Roland Garros Wednesday.

Bruno Soares, Marcelo Melo, Mate Pavic and Lukasz Kubot touch racquets after competing in the first round at the Western & Southern Open.

Marcelo Melo and Lukasz Kubot take their first ATP Tour doubles title of the season in Acapulco.

Marcelo Melo and Lukasz Kubot win their first ATP Tour doubles title of the season in Acapulco.

Marcelo Melo and Lukasz Kubot advance to the doubles semi-finals in Rio de Janeiro without dropping a set.

Marcelo Melo and Lukasz Kubot level their FedEx ATP Head2Head series against Ivan Dodig and Filip Polasek at 2-2.

The world's eight leading teams pose for the official 2019 Nitto ATP Finals doubles photo.

Marcelo Melo and Lukasz Kubot have won 16 of their past 19 tour-level matches.

Marcelo Melo and Lukasz Kubot are bidding to become the first team to win back-to-back Rolex Shanghai Masters titles.

Marcelo Melo and Lukasz Kubot convert three of six break points to reach the China Open semi-finals on Thursday.

Lukasz Kubot and Marcelo Melo move into the third round of the US Open.

Lukasz Kubot/Marcelo Melo win their first ATP Tour doubles team title of the season on Friday at the Winston-Salem Open

Lukasz Kubot/Marcelo Melo win the Winston-Salem Open doubles title on Friday.

Marcelo Melo & Lukasz Kubot open their 2019 Roland Garros campaign with victory over Roberto Carballes Baena and Jaume Munar

Marcelo Melo and Lukasz Kubot are into their second Monte-Carlo quarter-final as a team.

Lukasz Kubot, foreground, and Marcelo Melo advance on Wednesday at the Miami Open presented by Itau.

Marcelo Melo and Lukasz Kubot will try to win their first BNP Paribas Open title on Saturday against Nikola Mektic and Horacio Zeballos.

Mine! Marcelo Melo and Nick Kyrgios go for the same ball on Sunday night in Indian Wells.

Alexander Zverev celebrates winning the Nitto ATP Finals crown with his team, including Ivan Lendl, and his parents, Alexander Sr. and Irina.

Marcelo Melo and Lukasz Kubot celebrate capturing the Rolex Shanghai Masters doubles title on Sunday after victory over Jamie Murray and Bruno Soares.

Marcelo Melo and Lukasz Kubot beat Oliver Marach and Mate Pavic in straight sets at the Rolex Shanghai Masters on Saturday.

Lukasz Kubot and Marcelo Melo celebrate reaching the Shanghai semi-finals on Friday.

Marcelo Melo and Lukasz Kubot defeat Oliver Marach and Mate Pavic in straight sets at the China Open on Sunday.

Second seeds Lukas Kubot and Marcelo Melo save three match points on Thursday against Rohan Bopanna and Edouard Roger-Vasselin in Beijing.

Marcelo Melo and Alexander Zverev visit Ditan Park for a Tai Chi lesson ahead of the China Open.