Novak Djokovic has made the ideal start in his quest to win a record-equalling sixth ATP Finals title.
The world number two easily beat Italy's Matteo Berrettini in straight sets at the O2 Arena in London.
However, things weren't as rosy for Roger Federer, who was beaten by Dominic Thiem in his tournament opener.
It's the second year in a row that the seven-time Dubai Duty Free Tennis Championships winner has lost his opening match at the ATP Finals.
Blockx converts late Madrid call-up into breakthrough semi-final run
Alexander Blockx arrived at the Madrid Open expecting to play the qualifying rounds, but the Belgian has made the most of his late promotion to the main draw after a string of withdrawals, riding a wave of confidence to the semi-finals.
Holder brings 'sprinkling of stardust' as Gujarat beat RCB
Jason Holder's display in Gujarat Titans' four-wicket IPL win over champions Royal Challengers Bengaluru was exactly what the team was looking for when they bought the West Indies international, director of cricket Vikram Solanki said.
Japanese trailblazer Nishikori to retire at end of season
Kei Nishikori will hang up his racquet at the end of the 2026 season, the 36-year-old said on Friday, bringing down the curtain on a professional career that saw him break new ground for Japanese tennis.
Wood penalty hands Forest win over Villa in Europa League semi first leg
Nottingham Forest's Chris Wood smashed a penalty into the top corner to secure a 1-0 victory over Aston Villa in the first leg of their all-English Europa League semi-final on Thursday.
UAE Team Emirates XRG's Pogačar doubles up on stage 2 of Tour de Romandie
Tadej Pogačar made it two wins in two days for UAE Team Emirates XRG at the Tour de Romandie in Switzerland, with the race leader picking the spoils from a reduced bunch sprint on stage 2.
