Novak Djokovic has withdrawn from the ATP Cup in Australia ahead of the first Grand Slam tournament of the season, organizers said Wednesday.

No reason was given but the top-ranked Serb has declined to comment on his vaccination status in recent months and Australia's strict regulations require all players, officials and fans to be fully vaccinated against COVID-19.

Losses for Liverpool are about as rare as penalty misses by Mohamed Salah.

Both happened on Tuesday and, even at the halfway stage of the season, it could cost Jürgen Klopp's team the Premier League title.

The NBA has reduced quarantine time from 10 days to six for vaccinated players and coaches who come into contact with Covid-19 or contract the disease but are asymptomatic, ESPN reported Monday.

A police force in western England formally apologized Monday to the family of ex-Premier League footballer Dalian Atkinson, six months after one of its officers was jailed over his death.

A brace from Bukayo Saka helped Arsenal solidify its position among the top four in the Premier League with a 5-0 victory over bottom-of-the-table Norwich City at Carrow Road on Sunday.

The victory temporarily moved Arsenal to within three points of Chelsea in third — before the West London club won 3-1 at Aston Villa later Sunday — but still 12 points back of league leaders Manchester City.

Coronavirus postponements aside, 28 goals in the Premier League's six Boxing Day games provided a heavy dose of drama even without changing the complexion of the title race.

Even Manchester City, coasting at 4-0 after 25 minutes, managed to shake things up with a 10-minute second-half implosion to end up delivering a nine-goal thriller. The 6-3 win over Leicester left the defending champions six points in front.

Anthony Martial has told Manchester United he wants to leave, manager Ralf Rangnick said.

The France forward has dropped down the pecking order at Old Trafford, making just two Premier League starts this season and only four in all competitions.

Sevilla was held 1-1 at home by Barcelona in a match the hosts finished with 10 men after defender Jules Kounde was sent off with a direct red card for throwing the ball into an opponent's face.

Papu Gómez put Sevilla ahead in the 32nd minute as steady rain fell upon the Sánchez Pijuán field. Ronald Araújo headed in Ousmane Dembele's corner kick to equalize for Barcelona just before halftime.

The Tokyo Olympics cost $1.8 billion less than anticipated, local organizers said Wednesday, 4 1/2 months after the Games ended.

Organizers said the estimated official costs were $13.6 billion. Officials said part of the reduction was because there were no fans — forced by the pandemic — and therefore vastly reduced labor costs. They also said other outlays were lower than expected.

Ex-Formula 1 driver Jean Alesi was taken into custody in Avignon after setting off a large firecracker against the window of his brother-in-law's office, AFP learned from the prosecutor's office on Tuesday.