Jannik Sinner's dominance on American soil continued as he defeated Jiri Lehecka to secure the Miami Open title, with a score of 6-4, 6-4.

This victory makes him only the eighth man in tennis history to win the coveted sunshine double: winning Indian Wells and Miami in the same calendar year.

Sinner was particularly impressive on serve against Lehecka, serving 10 aces and winning 92% of his first-serve points.

Jim Courier and Chris Eubanks discussed Sinner's improvements on the Tennis Channel, emphasizing his evolution. Courier noted, “He’s not losing miles per hour [on serve], and the accuracy is something that we’ve talked a lot about in this tournament.”

Eubanks added that Sinner’s Miami triumph is “scary” for Carlos Alcaraz and the rest of the ATP.

Eubanks praised the adjustments Sinner has made to his serve: “He’s gotten more accurate, he’s hitting it bigger than ever, his percentage is going up, and then, when you get the serve back, when you’re finally able to guess right and return something that’s landing two feet of the line”.

Eubanks pointed out the difficulty of facing Sinner, who has improved his first serve without sacrificing speed, constantly risking near the line. “He’s using the drop shot. He’s running to the net. He’s doing all areas of the game so well”.

Sinner’s improved serve, combined with his overall game, presents a greater challenge to his competitors. Sinner has shown a remarkable ability to adapt and improve his game, making him a formidable opponent.

Eubanks emphasized that this is what should be scarier for the rest. “It’s also scary for Carlos Alcaraz because this is a rivalry that has been going back and forth”.

Both players have the same number of career titles and have won the same number of points against each other. This suggests a very balanced and promising competition for the coming years, where both will seek to surpass each other.

After winning the Miami Open, Sinner will travel to Europe for the Monte-Carlo Masters. Sinner, who only has one clay-court title to his name, last competed at the event in 2024 – losing in the semi-finals to Stefanos Tsitsipas.

Sinner stated on the Tennis Channel that he will prepare for Monte Carlo: “I’m going to jump on the plane tomorrow. I’m going to be in Monaco around lunchtime on Tuesday. We’re aiming to go back on court on Thursday, slow, but the body is going to hurt a bit. Then we’ll see how I’m going to feel”. After competing in Monte-Carlo, Sinner will likely travel to Spain for the Madrid Open, before heading to Rome for the Italian Open. Then he will head to Paris for the French Open.