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.

John Peers and Storm Sanders lift the US Open Mixed Doubles title in their first tournament playing together.

Daniel Evans and John Peers break serve three times in an opening-round win in Montrel.

John Peers and Filip Polasek defeat Novak Djokovic and Filip Krajinovic on Wednesday in Paris.

Filip Polasek and John Peers hold off Jurgen Melzer and Alexander Zverev to reach the quarter-finals at the Erste Bank Open in Vienna.

John Peers and Luke Saville power through the Match Tie-break for Australia's first tie win on Wednesday against Greece.

John Peers and Michael Venus own a 3-0 team record in ATP Tour finals.

John Peers (right) and Michael Venus (left) joined forces at the start of the 2020 ATP Tour season.

John Peers and Michael Venus won 82 per cent of their first-serve points en route to their first-round win in Antwerp.

John Peers and Michael Venus own a 14-6 team record.

John Peers (right) and Michael Venus (left) are aiming to capture their second ATP 500 title of the year.

Michael Venus and John Peers did not drop a set en route to the Dubai Duty Free Tennis Championships title.

John Peers and Michael Venus save all three break points to beat Jurgen Melzer and Edouard Roger-Vasselin at the Dubai Duty Free Tennis Championships.

Michael Venus and John Peers beat Pierre-Hugues Herbert and Benoit Paire in straight sets at the Dubai Duty Free Tennis Championships on Monday.

John Peers and Chris Guccione will look to help Australia win the inaugural ATP Cup in Sydney.

Henri Kontinen/John Peers advance on Wednesday in Vienna.

Bruno Soares and John Peers save both break points they face to beat Rohan Bopanna and Denis Shapovalov in the MercedesCup final on Sunday.

Bruno Soares and John Peers advance on Tuesday at the MercedesCup in Stuttgart.

John Peers and Henri Kontinen will look to reach the quarter-finals for a second time at Roland Garros.

John Peers and Henri Kontinen break serve four times to reach the second round in Rome.

Henri Kontinen and John Peers kick off their Indian Wells quest with a victory.

John Peers watches on as Henri Kontinen chases down a ball on Thursday in their Australian Open semi-final victory.

Australia's John Peers and Lleyton Hewitt defeat Oliver Marach and Jurgen Melzer of Austria in the Davis Cup World Group Play-offs on Saturday.