Twenty-time Grand Slam champion Roger Federer edged past Swiss tennis player Stanislas Wawrinka to enter the semi-final of the ongoing Cincinnati Open here on Saturday. But I got my energy back for the third set, a momentum shift was good for me".
By entering the final, Čilić would jump to fifth place in the individual ATP ranking, and by winning his second title in Cincinnati, he would skip Alexander Zverev to be the fourth best tennis player in the world.
Play was finally halted two points into the third set.
The Wimbledon champion had only a short recovery before facing Canada's Milos Raonic in the quarter-finals.
"I have learned that I don't have to give up, because anything can happen", she said.
Goffin will meet Federer in the semis, while the other last four clash will match former world No.1 Novak Djokovic of Serbia against Croatia's Marin Cilic. "I've now got a hard final against a tough opponent".
The Serb, a 13-time Grand Slam victor, claimed a memorable Wimbledon title in July - a victory that marked the culmination of a two-year rise and fall from the very top of the game.
"It would be the greatest challenge in Cincinnati, without a doubt, because he's been dominating this tournament historically", Djokovic said.
"In the end, very few points, really, decided victor", said Djokovic. Cilic put out Spanish 13th seed Pablo Carreno Busta 7-6 (9/7), 6-4. "I was serving 100 miles per hour first serve and my arm and my shoulder felt so bad". "It was a tough match, but I'm so glad to be in the final".
"Definitely Novak is playing really well". Last week were really important and really good for myself, for my tennis, for my confidence. He would get a second chance when Federer double-faulted, but his serve was on point as he hit three straight that were unreturnable. For me, it's kind of transition year, because I knew I didn't start the year full.
It was the second fightback of the day for Halep, who came from a break down in each set to overhaul Australian 16th seed Ashleigh Barty in the third round.
Double Wimbledon victor Petra Kvitova reached the final four over Belgian Elise Mertens 7-5, 5-7, 6-3. Del Potro is facing 11th-seeded Belgian David Goffin, a 6-2, 6-4 victor over sixth-seeded South African Kevin Anderson in another rain-delayed match.
She'll face Kiki Bertens, who advanced to her first Western & Southern final by wearing down No. 8 Petra Kvitova 3-6, 6-4, 6-2.