World number 3 Novak Djokovic breezed into the third round of ATP Shanghai Masters on Tuesday, beating Jeremy Chardy of France in straight sets 6-3, 7-5. The Frenchman served for the first then held four set points in the second set tiebreaker at 6-2.
Federer, who himself acted as a ball boy in his youth, said he felt most of the young helpers understood the pressure players are under, but that it was vital they enjoyed a good experience at tournaments.
Medvedev said he would be realising a dream by facing Federer for the first time.
The Argentine continues to be under the weather, but just about did enough to see off Gasquet 7-5, 7-6 (9/7). "I had only one day to get used to it, so I was not in my best shape today".
"It wasn't easy to play for me today", said del Potro, who reached the China Open final last week.
The 21-year-old Zverev fought off a cold - he has had a sore throat and blocked nose for a few days - and the raw power of Basilashvili, winning 7-5, 6-4.
"I have given everything I had in today's match", said Zhang.
The reigning champion squeezed into the quarter-finals after eventually defeating the 28th-ranked Spaniard Roberto Bautista Agut 6-3, 2-6, 6-4.
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"But of course I would love to feel better, first of all to myself, and then to play tennis, but it's going to be hard because I'm not taking time to recover 100 percent".
"I think I'm a completely different player than I was in the first five, six months of the year". I was a bit disappointed with my play there. "I was aggressive when I needed to be".
The Wimbledon and US Open champion, Djokovic is hoping to win a record fourth Shanghai title this week.
Djokovic will play South Africa's Kevin Anderson or the Greek Stefanos Tsitsipas in the quarter-finals.
Fourth seed Alexander Zverev also barrelled into the quarters with a 6-1, 6-4 victory over Alex de Minaur.
Cecchinato looked most risky early on in the match, when he earned a couple of early break points on Djokovic's serve.
In the last four the 37-year-old will face eighth-seeded Japanese Kei Nishikori, who knocked out big-serving American Sam Querrey 7-6 (7) 6-4.
HONG KONG (AFP-Jiji) - Li Na's shining example and the explosion of tournaments in China after her Grand Slam wins has triggered the emergence of a new generation of Chinese players, the country's top two women have said.