Taylor Fritz of the US claimed a decisive win today in Turin ©Getty Images

American Taylor Fritz emerged victorious after three sets against Canadian Félix Auger-Aliassime at the Association of Tennis Professionals (ATP) Finals in Turin today, meaning he qualified for the semi-finals of the men's singles.

Both players could advance with a victory, but it was Fritz that won the deciding set, with the match ending 7-6, 6-7, 6-2 at the Pala Alpitour.

The American kept himself in contention on his ATP Finals debut after recording a win against Spanish 22-time Grand Slam winner Rafael Nadal earlier in the tournament.

Fritz is now set to face Serbian Novak Djokovic in the final four.

In a dead rubber match, Nadal recorded his first and only victory in the group stage, defeating already-qualified Norwegian Casper Ruud 7-5, 7-5.

Having secured the top spot in the Green Group before his loss to Nadal, Ruud is set to face the winner of Greece's Stefanos Tsitsipas and Andrey Rublev, a Russian player competing as a neutral, tomorrow.

Canadian Félix Auger-Aliassime missed out on the semi-finals following the defeat ©Getty Images
Canadian Félix Auger-Aliassime missed out on the semi-finals following the defeat ©Getty Images

In the men's doubles, American Rajeev Ram and Britain's Joe Salisbury made it three wins from three, coming from behind in their last game of the Red Group to defeat Marcelo Arévalo from El Salvador and The Netherlands' Jean-Julien Rojer 3-6. 7-6, 10-5.

Second place went to Britain's Lloyd Glasspool and Harri Heliövaara of Finland - defeating Spain's Marcel Granollers and Horacio Zeballos of Argentina 6-0, 6-4.

Tomorrow in the Green Group, Croatians Nikola Mektić and Mate Pavić could seal a top spot with a win over Australians Thanasi Kokkinakis and Nick Kyrgios.

Dutch player Wesley Koolhof and Neal Skupski of Britain can keep their chances of advancing alive with a win over winless Ivan Dodig of Croatia and Austin Krajicek from the United States.