Zverev himself broke in the very first game against an opponent who appeared drained after having to win two matches on Saturday to reach the final.
Del Potro held serve twice and Djokovic once at the start of the second set before a heavy downpour at the Foro Italico sent the players to the locker room at around 10:45 pm. On the other hand, he didn't get much from my side. "Thiem has been showing he's been playing very well", he added. I just wasn't able to get any rhythm on my returns. He finished the match with 16 winners and just 14 unforced errors.
The match lasted 1 hour, 21 minutes.
"I spoke to Andre the last couple weeks on the phone, and we made a decision to get together in Paris", Djokovic said after his defeat to Zverev.
The 12-time grand slam singles champion split from Boris Becker last December and has now turned to Agassi in a bid to get back to the peak of his powers, with the French Open starting this month. "I'm very excited to see what is ahead of us", added Djokovic, who captured a career Grand Slam when he prevailed at Roland Garross previous year.
With tennis greats Rod Laver and Manolo Santana looking on, Zverev showed off an all-court game that has prompted many experts to predict he'll reach No. 1 someday. He never came close to getting back on serve because Zverev surrendered only six points in five service games during the first set.
In the decider, the Romanian, who had won 26 of her past 30 matches on clay, was visibly hurting and was helpless to prevent Svitolina from claiming her fourth title of the season after wins in Taipei, Dubai and Istanbul.
Svitolina raced to a 5-0 lead in the final set before completing a Tour-leading 31st match win this year.
"I didn't want to leave Rome without trying to play", said Muguruza.
Halep took the title in Madrid last weekend. Svitolina also required medical treatment midway through the second set for an apparent problem with her left leg. He made almost twice as many unforced errors as his younger opponent, in a match lasting just under an hour and a half. In the victory, Djokovic won 81 percent of his first serve points and 50 percent of his second serve points.