The second-ranked Russian, who won the US Open and finished runner-up at the Australian Open, defeated Casper Ruud, 6-4, 6-2, in Turin.

The Norwegian rallied from a set and a break down to score his first win over Rublev in five attempts and book a semifinal clash with defending champion Daniil Medvedev.

With four wins (three on clay) and no losses to Ruud, it sure seems like this match is Rublev's for the taking.

Cam Norrie was called in as the second alternate after the 2018 champion was forced to withdraw with an injury.

Expect some nervy and competitive tennis as both players fight to keep their hopes alive in Turin.

The top seed, who was also presented with his record seventh ATP year-end No. 1 trophy on Monday, posted a 7-6 (4), 6-2 victory over the Norwegian in Turin.

Monday's matches also feature five-time ATP Finals champ Novak Djokovic and WTA Finals top seed Aryna Sabalenka.

The Nitto ATP Finals moves to Italy and will host a septet of young contenders aiming to unseat the 20-time major champion.

The Pole secured the last berth in the tour's season-ending championships by defeating James Duckworth, a day after the Norwegian topped Marcos Giron to secure passage to Turin.

Though motivation is never an issue with Ruud, a great week in Paris will guarantee a phenomenal paycheck at the ATP Finals in Turin.