Siddharth Vishwakarma took up the game at six after a doctor advised his parents to enrol their child in a sport.
Former US Open champion Del Potro fired down 12 aces and won five out of eight break point opportunities to chalk up a comfortable win over Filip Krajinovic.
Mahesh Bhupathi has been accused of "breaking the business code" by TV Production company Broadcast Sports News.
The eight-country Hopman Cup tournament is scheduled from December 29 to January 5 on indoor hard courts at Perth Arena.
Simona Halep aggravated the problem during her China Open first-round match on Sunday against Ons Jabeur and was forced to retire after losing the first set.
Asian Games bronze medallist Ankita Raina and top men's singles player Yuki Bhambri confirmed to PTI that they were asked by NADA to provide whereabout details and they were tested.
Last week at the Chengdu Open Jeevan Nedunchezhiyan reached only the second ATP250 level final with American partner Austin Krajicek.
Naomi Osaka joined Romanian world number one Simona Halep and German Wimbledon champion Angelique Kerber as qualifiers for the WTA Finals.
With Marin Cilic and Juan Martin del Potro turning 30 last week, there are zero Grand Slam champions in their 20s for the first time.
Naomi Osaka was reduced to tears as she waited to be handed her maiden major trophy and an angry crowd at Flushing Meadows took out their frustration on Carlos Ramos.
India will lock horns with Italy after 21 years as the last time the two teams clashed was in 1998 when Italy won the home tie in Genoa.
Spaniard Fernando Verdasco has come under fire for his vile behaviour towards a ball boy at the recently concluded Shenzhen Open in China.
Serena Williams grabbed headlines after releasing a video of herself singing Australian rock classic 'I Touch Myself' to remind women to check their breasts regularly.
Petra Kvitova was undermined by her own inconsistency, making 39 unforced errors, while Gavrilova made just 12.
Fatma Al Nabhani has alleged that she was treated unfairly in Clermont-Ferrand, France during a tournament because she's Muslim.
Tensions over tournaments, ranking points and new events in an already crowded calendar have bubbled to the surface in recent weeks, most notably with the ITF's controversial re-fashioning of the Davis Cup.
Todd Woodbridge, second half of the famed Woodie, says international tennis players should not give up singles.
The revised week-long, 18-team finals are scheduled to be held at La Caja Magica, in November 2019, while the following edition will be held at either the same location or the WiZink Center.
India will play World Group Playoff at home against opponents Italy, who are ranked 10th in the Davis Cup
Great Britain and Argentina's seeded place in the qualifiers will go to Australia and Switzerland who went out from the 2018 world group as the next best ranked teams.