Damir Dzumhur: Stefanos Tsitsipas could become world No. 1

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Three-time ATP champion Damir Dzumhur was in great spirits after stunning former world No. 5 Kevin Anderson in the Miami first round. Dzumhur, who lost in the Miami qualifying final round and and then entered the tournament as a lucky loser, beat Anderson 7-6 (6) 7-5.

"I know that my game can be much better than what I'm showing right now and my position in the [FedEx] ATP Rankings can be much better," world No. 126 Dzumhur told the ATP website. "This win means a lot to me and I hope that this is going to give me enough confidence to continue playing good and to make some good results in the next tournaments."

Dzumhur plays next Stefanos Tsitsipas

After a big win over Anderson, Dzumhur is hoping to stun No.

2 seed Tsitsipas. "I'm going to try to keep going that way. Stefanos is improving his game so much every week," Dzumhur said. "He's one of the best players in the world right now and he's definitely one of the young generation who can come to No.

1." Meanwhile, rising American star Sebastian Korda also made a good start as he beat Radu Albot 6-3 6-0. “I love playing at night,” Korda told ATPTour.com. “I’ve only played two day matches this whole year.

I love playing at night, and I love playing in South Florida. I’m super pleased with how I played today. "[I'm] just putting in the hard work, and so far it's paying off. Hopefully I can take the next step and go a little deeper now." Korda plays next against Italian tennis star Fabio Fognini and he is hoping to deliver a good performance.

“I’ve been watching him since I was a kid, so it’s going to be a fun match,” Korda said. “I’ll play him in doubles, and hopefully I get a little feel for his game and hopefully get ready for Saturday”.