London - Serbia's Janko Tipsarevic quit his Wimbledon first round match after just 15 minutes on Tuesday but insisted players who pocket prize money for such brief encounters should not be judged.
The 33-year-old was 5-0 down to Jared Donaldson when he quit with a leg injury, becoming the sixth man to retire from the first round.
Earlier, Roger Federer reached the second round when Alexandr Dolgopolov quit when trailing 6-3, 3-0 after just 43 minutes complaining of an ankle injury.
Title rival Novak Djokovic also moved on in just 40 minutes when Martin Klizan, suffering from a calf injury, retired at 6-3, 2-0 down.
All first round losers at Wimbledon receive £35,000 ($45,220).
But Tipsarevic insisted that had he known he was carrying a serious injury he would not have stepped on court.
The 33-year-old said he had been assured by tournament doctors that he had not suffered a tear in his hamstring despite feeling searing pain following a practice earlier this week.
"I was 110 percent sure that I had torn my right hamstring, I could hardly walk. But the doctor said all seemed clear," said Tipsarevic.
"I was expecting him to say that I had broken a tendon. I even took an epidural in my lower back.
"I went back to see him. I said please check, but he said all was clear. If he had said you have a tear I would not have stepped on court.
"It would be unfair if I did that when I knew just to take the prize money."
Tipsarevic said that having made more than $8 million in his career, he had no pressing need to bank the first round cheque.
But he was adamant that players down the rankings who scrape a living on the second and third-tier circuits should not be judged if they see such prize money as a much-needed windfall.
He believes that the four Grand Slams should adopt the ATP rule whereby an injured player can withdraw from the tournament but keep the prize money.
His place would go instead to a 'lucky loser' from qualifying who would only collect a cheque from the second round onwards.
"Lots of players fight through Challengers to get to the main draw of a Slam. They have to pay coaches and their teams," added Tipsarevic.
"They get the chance to earn 35,000 and I don't think anyone has the right to judge them because the same guy may then go on to a Challenger and make just 300 euros.
"I think the ATP rule should be introduced -- it's a win-win."
Wimbledon results on Tuesday, the second day of the 2017 championships at the All England Club (x denotes seeding):
Radu Albot (MDA) bt Facundo Bagnis (ARG) 4-6, 6-4, 7-6 (11/9), 7-6 (7/3)
Milos Raonic (CAN x6) bt Jan-Lennard Struff (GER) 7-6 (7/5), 6-2, 7-6 (7/4)
Mikhail Youzhny (RUS) bt Nicolas Mahut (FRA) 6-2, 7-5, 6-4
Andrey Rublev (RUS) bt Stefano Travaglia (ITA) 6-7 (3/7), 6-3, 7-5, 1-6, 7-5
Albert Ramos (ESP x25) bt Jordan Thompson (AUS) 6-4, 6-4, 7-6 (7/4)
Jack Sock (USA x17) bt Christian Garn (CHI) 6-3, 4-6, 7-6 (7/4), 6-3
Alexander Zverev (GER x10) bt Evgeny Donskoy (RUS) 6-4, 7-6 (7/3), 6-3
Marcos Baghdatis (CYP) bt James Ward (GBR) 6-4, 6-4, 6-3
Mischa Zverev (GER x27) bt Bernard Tomic (AUS) 6-4, 6-3, 6-4
Mikhail Kukushkin (KAZ) bt Taro Daniel (JPN) 4-6, 6-4, 7-6 (7/4), 6-2
Roger Federer (SUI x3) bt Aleksandr Dolgopolov (UKR) 6-3, 3-0 -- retired
Gilles Simon (FRA) bt Nicols Jarry (CHI) 7-6 (7/4), 6-3, 6-3
David Ferrer (ESP) bt Richard Gasquet (FRA x22) 6-3, 6-4, 5-7, 6-2
Steve Darcis (BEL) bt Ricardas Berankis (LTU) 4-6, 6-3, 2-6, 6-4, 6-3
Gael Monfils (FRA x15) bt Daniel Brands (GER) 6-3, 7-5, 6-4
Kyle Edmund (GBR) bt Alex Ward (GBR) 4-6, 6-3, 6-2, 6-1
Yuichi Sugita (JPN) bt Brydan Klein (GBR) 7-6 (7/5), 6-3, 6-0
Juan Martn Del Potro (ARG x29) bt Thanasi Kokkinakis (AUS) 6-3, 3-6, 7-6 (7/2), 6-4
Ernests Gulbis (LAT) bt Vctor Estrella (DOM) 6-1, 6-1, 6-2
Adam Pavlsek (CZE) bt Ernesto Escobedo (USA) 6-7 (7/9), 6-1, 6-3, 6-1
Novak Djokovic (SRB x2) bt Martin Klizan (SVK) 6-3, 2-0 -- retired
Angelique Kerber (GER x1) bt Irina Falconi (USA) 6-4, 6-4
Kirsten Flipkens (BEL) bt Misaki Doi (JPN) 6-4, 6-3
Shelby Rogers (USA) bt Julia Boserup (USA) 6-3, 4-6, 6-3
Sorana Cirstea (ROM) bt Kiki Bertens (NED x23) 7-6 (7/4), 7-5
Bethanie Mattek-Sands (USA) bt Magda Linette (POL) 1-6, 6-2, 6-3
Yanina Wickmayer (BEL) bt Kateryna Bondarenko (UKR) 6-2, 7-5
Garbie Muguruza (ESP x14) bt Ekaterina Alexandrova (RUS) 6-2, 6-4
Agnieszka Radwanska (POL x9) bt Jelena Jankovic (SRB) 7-6 (7/3), 6-0
Christina McHale (USA) bt Katie Boulter (GBR) 3-6, 7-5, 6-3
Varvara Lepchenko (USA) bt Lauren Davis (USA x28) 6-4, 7-5
Polona Hercog (SLO) bt Annika Beck (GER) 6-2, 6-1
Karolna Plskov (CZE x3) bt Evgeniya Rodina (RUS) 6-1, 6-4
Magdalena Rybarikova (SVK) bt Monica Niculescu (ROM) 6-4, 6-1
Viktorija Golubic (SUI) bt Zhang Shuai (CHN x30) 6-3, 6-7 (2/7), 6-1
Petra Martic (CRO) bt Daria Gavrilova (AUS x20) 6-4, 2-6, 10-8
Denisa Allertov (CZE) bt Risa Ozaki (JPN) 7-6 (7/5), 2-6, 6-3
Zarina Diyas (KAZ) bt Xinyun Han (CHN) 6-3, 6-4
Arina Rodionova (AUS) bt Anastasia Pavlyuchenkova (RUS x16) 3-6, 7-6 (8/6), 9-7
Alison Riske (USA) bt Sloane Stephens (USA) 6-2, 7-5
Tatjana Malek (GER) bt Anastasia Potapova (RUS) 6-3, 2-2 -- retired
Coco Vandeweghe (USA x24) bt Mona Barthel (GER) 7-5, 6-2
Darya Kasatkina (RUS x29) bt Zheng Saisai (CHN) 6-2, 6-4