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Novak Djokovic has lost to 14 players on grass—can you name them all?

The 23-time major champion, who opens Centre Court Monday at Wimbledon, hasn't been defeated on the surface in more than five years.

By Matt Fitzgerald
HIGHLIGHTS: N. Djokovic def. N. Kyrgios; Wimbledon F2:00

It’s one tall order for a player to defeat Novak Djokovic. Pulling it off on a grass court might just be the biggest ask for any of his current peers.

As the 23-time major champion gets set to open Centre Court play at Wimbledon on Monday against Pedro Cachin, Djokovic brings a 28-match win streak at the tournament to the table. He hasn’t lost on grass since being edged out in the 2018 London Queen’s final and over his career, has come out on the winning end 85.8% of the time with a lawn under his feet.

Fourteen players own a grass-court win over Djokovic—four have doubled up with a pair of victories. Can you name them all?

A run down, in reverse chronological order:

Marin Cilic

LONDON, ENGLAND - JUNE 24: Marin Cilic of Croatia is congratulated after his men's singles final match by Novak Djokovic of Serbia on Day Seven of the Fever-Tree Championships at Queens Club on June 24, 2018 in London, United Kingdom. (Photo by Matthew Stockman/Getty Images)
© 2018 Getty Images

Tomas Berdych

LONDON, ENGLAND - JULY 12: Novak Djokovic of Serbia shakes hands with Tomas Berdych of The Czech Republic as he retires injured during the Gentlemen's Singles quarter final match on day nine of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 12, 2017 in London, England. (Photo by Julian Finney/Getty Images)
© 2017 Getty Images

Sam Querrey

LONDON, ENGLAND - JULY 02: Sam Querrey of The United States shakes hands with Novak Djokovic of Serbia following victory during the Men's Singles third round match on day six of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 2, 2016 in London, England. (Photo by Adam Pretty/Getty Images)
© 2016 Getty Images

Andy Murray

LONDON, ENGLAND - JULY 07: Andy Murray of Great Britain poses with the Gentlemen's Singles Trophy next to Novak Djokovic of Serbia following his victory in the Gentlemen's Singles Final match on day thirteen of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 7, 2013 in London, England. (Photo by Clive Brunskill/Getty Images)
© 2013 Getty Images

Juan Martin del Potro

LONDON, ENGLAND - AUGUST 05: Juan Martin Del Potro of Argentina shakes hands at the net with Novak Djokovic of Serbia after their Men's Singles Tennis Bronze Medal Match on Day 9 of the London 2012 Olympic Games at the All England Lawn Tennis and Croquet Club on August 5, 2012 in London, England. (Photo by Julian Finney/Getty Images)
© 2012 Getty Images

Roger Federer

Roger Federer of Switzerland shakes hands with Novak Djokovic of Serbia at Wimbledon, 2012 (Photo by AMA/Corbis via Getty Images)
© Copyright 2012 © Matthew Ashton/AMA AMA SPORTS PHOTO AGENCY 07885 163164 / +44 7885163164

Xavier Malisse

LONDON, ENGLAND - JUNE 11: Xavier Malisse of Belgium in action during his quarter final match against Sam Querrey of USA on Day 5 of the the AEGON Championships at Queen's Club on June 11, 2010 in London, England. (Photo by Clive Brunskill/Getty Images)
© 2010 Getty Images

Tommy Haas

WIMBLEDON, ENGLAND - JULY 01: Tommy Haas of Germany shakes hands with Novak Djokovic of Serbia after the men's singles quarter final match on Day Nine of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 1, 2009 in London, England. (Photo by Ian Walton/Getty Images)
© 2009 Getty Images

Marat Safin

LONDON - JUNE 25: Marat Safin of Russia hugs Novak Djokovic of Serbia after winning the men's singles round two match on day three of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 25, 2008 in London, England. (Photo by Ryan Pierse/Getty Images)
© 2008 Getty Images

Rafael Nadal

LONDON - JUNE 15: Rafael Nadal of Spain poses for a picture next to Novak Djokovic of Serbia before the Men's Singles Final match on Day 7 of the Artois Championships at Queen's Club on June 15, 2008 in London, England. (Photo by Matthew Stockman/Getty Images)
© 2008 Getty Images

Arnaud Clement

LONDON - JUNE 11: Arnaud Clement of France hits a forehand during the first round singles match against Ivan Navarro Pastor of Spain during Day 1 of the Artois Championships at The Queen's Club on June 11, 2007 in London, England. (Photo by Alex Livesey/Getty Images)
© 2007 Getty Images

Mario Ancic

LONDON - JULY 03: Mario Ancic (L) of Croatia and Novak Djokovic (R) of Serbia and Montenegro embrace after Mario Ancic won their match during day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 3, 2006 in London, England. (Photo by Phil Cole/Getty Images)
© Getty Images

Jan Hernych

HERTOGENBOSCH, NETHERLANDS - JUNE 24: Jan Hernych of the Czech Republic in action against Mario Ancic of Croatia in the final of the Ordina Open on June 24, 2006 in Hertogenbosch, the Netherlands. (Photo by Denis Doyle/Getty Images)
© Getty Images

Sebastian Grosjean

LONDON - JUNE 25: Sebastien Grosjean of France in action against Novak Djokovic of Serbia & Montenegro during the sixth day of the Wimbledon Lawn Tennis Championship on June 25, 2005 at the All England Lawn Tennis and Croquet Club in London. (Photo by Mike Hewitt/Getty Images)
© 2005 Getty Images