Tomas Berdych won 13 titles, reaching a career-high of fourth in the rankings in 2015 in his 17-year-old Tennis career.
The 34-year-old current world number 103 has won 13 ATP titles, reaching a career-high fourth rank in 2015.
Rafael Nadal defeated Tomas Berdych 6-0, 6-1, 7-6 (7/4) to reach his 11th Australian Open quarterfinal.
Roger Federer is beginning his grass season in Stuttgart for the third consecutive year after reaching the 2016 semi-finals.
Djokovic revealed he felt "great" after beating world number five Dominic Thiem 6-1, 6-4 at the Kooyong Classic.
Seven-time champion Roger Federer reached his 11th Wimbledon final on Friday
Wimbledon 2017 highlights: Seventh seed Marin Cilic will play 18-time Grand Slam champion Roger Federer in the men's singles final at Wimbledon after the Swiss beat Tomas Berdych in straight sets on Friday. Cilic quelled Sam Querrey's challenge in four sets to reach his first Wimbledon final.
Novak Djokovic was trailing 7-6, 2-0 and felt he had no option but to call it quits as the pain, from an injury that has troubled him for more than a year, began to increase.
Czech world number 15 Berdych, the 2010 Wimbledon runner-up, goes on to face Roger Federer or Milos Raonic for a place in Sunday's final.
Novak Djokovic will face the Czech Republic's Tomas Berdych on Wednesday for a semi-final spot, boasting a 25-2 career record over the 2010 Wimbledon runner-up.