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Daniil Medvedev is guaranteed to retain World No. 1 after Montreal.

What Medvedev Must Do To Fend Off Alcaraz's World No. 1 Push

ATPTour.com examines the scenarios in the battle for No. 1

Daniil Medvedev will retain his No. 1 spot in the Pepperstone ATP Rankings regardless of how he performs in Montreal this week. However, the ATP Masters 1000 event will play a crucial role in how the battle for World No. 1 develops.

Medvedev arrives in Canada in good form after winning his first title of the season at the Abierto de Tenis Mifel. But he has work to do if he is to prevent Carlos Alcaraz and Rafael Nadal from mounting a challenge to his hold on top spot in Cincinnati.

If Medvedev reaches the final of the Canadian event, he will retain World No. 1 through at least the US Open. If he falls before Sunday's final, he will open the door for the Spaniards to put pressure on him in Cincinnati.

Alcaraz must reach the Montreal final to have a chance of climbing to World No. 1 after the Western & Southern Open in Cincinnati. If the 19-year-old wins his third Masters 1000 title of the season in Canada and Medvedev does not reach the championship match, the battle for World No. 1 will be live between the pair in Cincinnati. If Medvedev fails to reach the Round of 16 in Montreal, Alcaraz will have a shot at No. 1 in Cincinnati by reaching the final in Canada this week.

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Nadal is not competing in Montreal due to an abdominal injury. However, if Medvedev loses before the quarter-finals, the 36-year-old will also have an opportunity in Cincinnati, where he would need to win the title to have a chance to reclaim No. 1 for the first time since January 2020.

Medvedev, who will begin his 12th week at World No. 1 on Monday, does not let the pressure of his position affect him.

“I know what I want to achieve. I know what I do for this, how I work hard for this and that’s what matters to me. I know the people around me support me and for sure I’m really happy as the World No. 1 to get this title,” Medvedev said after triumphing in Los Cabos. “I’m really happy about it, but 4,000 points are coming and I want to get the most possible and that’s what I’m going to try to do.”

Alcaraz is currently at a career-high World No. 4 and while he can insert himself into the battle for No. 1, his sights will first be set on climbing to No. 3. If the 19-year-old reaches the final in Montreal, he will pass Nadal for that spot next Monday.