Marcelo Melo celebrates his 1,000th tour-level match on Monday in Atlanta.

Marcelo Melo and John Peers celebrate victory on Sunday at the Terra Wortmann Open in Halle.

John Peers and Marcelo Melo in action in Halle.

Germans Oscar Otte and Jan-Lennard Struff fall to Marcelo Melo and John Peers in the Halle semi-finals.

Marcelo Melo and Juan Sebastian Cabal win their Rio quarter-final match without facing a break point.

Marcelo Melo and Juan Sebastian Cabal are teaming for the first time this week in Rio de Janeiro.

Marcelo Melo and Mackenzie McDonald celebrate winning the title Sunday at the Rakuten Japan Open Tennis Championships.

Top seeds Raven Klaasen and Marcelo Melo are seeking their third tour-level title as a pair.

Marcelo Melo and Alexander Zverev advance to the quarter-finals in Monte Carlo on Tuesday.

Doubles partners Marcelo Melo and Alexander Zverev with football star Neymar in Monte Carlo on Monday.

Ivan Dodig and Marcelo Melo win nine of the last 10 games in their Miami first-round win.

Marcus Daniell and Marcelo Melo defeat Alex de Minaur and John Millman in a Match Tie-break to advance in Washington, D.C.

Marcelo Melo and Jean-Julien Rojer saved all seven break points they faced to beat Jamie Murray and Bruno Soares at the Mutua Madrid Open.

Lukasz Kubot and Marcelo Melo beat Wesley Koolhof and Nikola Mektic despite losing five more points in the match.

Lukasz Kubot and Marcelo Melo are making their fourth straight team appearance at the Nitto ATP Finals.

Lukasz Kubot and Marcelo Melo oust defending champions Pierre-Hugues Herbert and Nicolas Mahut in the Paris quarter-finals.

Marcelo Melo and Lukasz Kubot capture their third Vienna title as a team.

Marcelo Melo and Lukasz Kubot are one win from claiming their third Vienna title as a team.

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.