Alexander Zverev has beaten Rafael Nadal in their opening round-robin match of the ATP Finals.
The loss dents Nadal's chances of ending the year as the number one ranked tennis player in the world.
He entered the season-finale in London with an abdominal injury.
Tuesday's match sees Roger Federer, who also lost his opening encounter, take on Italy's Matteo Berrettini.
Play gets underway at 6:00 pm UAE time.
Mid East Falcons win inaugural United Series Championship in Dubai
Shotaro Kasahara allowed only two hits in six scoreless innings with six strikeouts to lead the Mid East Falcons to the first United Series championship in League history.
UAE to face Morocco in FIFA Arab Cup semi-final
The UAE is set to face Morocco for the FIFA Arab Cup 2025 semi-finals at Khalifa International Stadium on Monday in Doha, Qatar.
Man City beat Palace, Villa edge West Ham in five-goal thriller
Manchester City have maintained their squeeze on Arsenal at the top of the Premier League with a 3-0 victory at Crystal Palace on Sunday, a result that keeps Pep Guardiola's side lurking two points behind the leaders and ready to pounce.
Rodrygo's winner lifts Real Madrid past Alaves to end losing streak
Rodrygo have secured Real Madrid a crucial 2-1 victory over Deportivo Alaves on Sunday in LaLiga, ending a dismal run of form and keeping them within four points of leaders Barcelona.
Mid East Falcons win the inaugural United Series Championship in Dubai
Shotaro Kasahara has allowed only two hits in six scoreless innings with six strikeouts to lead the Mid East Falcons to the first United Series championship in League history.
UAE President His Highness Sheikh Mohamed bin Zayed Al Nahyan has discussed enhancing cooperation with Niko Christodoulides, President of Cyprus, as part of the Comprehensive Strategic Partnership between the two nations.
Road and Transport Authority (RTA) has outlined the route map for Dubai Metro's Blue Line that will connect 14 stations, of which five will be elevated, four underground, two "future elevated" and one underground interchange.
The UAE has inaugurated the Emirates Medical Centre in Khan Younis, south of the Gaza Strip, that aims to support the health sector across the territory by delivering urgent medical care.
