Reuters Sports News Summary

NBA roundup: Luka Doncic scores 46 in Mavs' win Luka Doncic scored a career-high 46 points and Kristaps Porzingis added 36 as the host Dallas Mavericks won their fourth straight game, beating the New Orleans Pelicans 143-130 on Friday night.

Following is a summary of current sports news briefs. Barty bounces into fourth round on empty court

World number one Ash Barty overcame a stumbling start to reach the fourth round of the Australian Open with a 6-2 6-4 victory over Ekaterina Alexandrova at an empty Margaret Court Arena on Saturday. The top seeded Australian was broken in her first service game but quickly rallied to take the first set when the Russian slapped the ball into the net for her 16th unforced error. Nadal eases past Norrie into last 16

Second seed Rafa Nadal overcame some stiff early resistance from Britain's Cameron Norrie before easing into the fourth round of the Australian Open with a 7-5 6-2 7-5 victory on Saturday. After being heckled by a loud-mouthed fan in his previous round win against Michael Mmoh, Nadal enjoyed an incident-free evening in an empty Rod Laver Arena to reach the round of 16 at a Grand Slam for the 49th time in his career. Tokyo Olympics chief quits, apologises again over sexist remarks

Tokyo 2020 Olympics chief Yoshiro Mori resigned on Friday and apologised again for sexist remarks that sparked a global outcry, leaving the troubled Olympics searching for a chief five months from the opening ceremony. The resignation of the 83-year-old former prime minister further erodes confidence in organisers' ability to pull off the postponed Summer Games during a coronavirus pandemic. Australian Open day six

Highlights of day six of the Australian Open tennis championships at Melbourne Park on Saturday. Times local (GMT +11): 1112 PLAY UNDERWAY AT EMPTY STADIUMS Canada captain Sinclair unavailable for SheBelieves Cup

Injured captain Christine Sinclair, soccer's most prolific goal scorer, is among seven national team players unavailable for next week's SheBelieves Cup in Orlando, Canada Soccer said on Saturday. Sinclair and midfielder Diana Matheson did not travel to Orlando due to injury while goalkeeper Erin McLeod and defender Bianca St-Georges returned to their clubs after picking up injuries at camp, Canada Soccer said in a news release. Injured Djokovic's Australian Open record bid hangs in balance

The Australian Open rolls on amid a Melbourne lockdown, but the tournament risks losing its greatest champion in the first week as fans wait to hear if Novak Djokovic will be fit to play on Sunday. Djokovic suffered a muscle tear in his third-round, five-set epic against Taylor Fritz, and the world number one skipped practice on Saturday in a bid to recover in time to resume his quest for a record-extending ninth title at Melbourne Park. Alpine skiing: Ligety forgoes final race of career due to bad back

Double Olympic champion Ted Ligety, who planned to retire on his own terms after next week's Alpine skiing world championships, abruptly called time on his career on Saturday due to a bad back. The 36-year-old American announced earlier this week that the giant slalom in Cortina D'Ampezzo, Italy, would be the final race of his career but has since been hit with what he described as the worst sciatic pain of his life. Players switch back to COVID-mode as fans exit Australian Open

As boisterous crowds made way for deafening silence at the Australian Open on Saturday, players did not have to do too much adjusting as they abruptly switched back to the "new normal" of the COVID-19 pandemic. Victoria, of which Melbourne is the capital, entered a five-day lockdown on Saturday to contain a COVID-19 outbreak. Authorities allowed the Australian Open to continue but without the presence of fans. NBA roundup: Luka Doncic scores 46 in Mavs' win

Luka Doncic scored a career-high 46 points and Kristaps Porzingis added 36 as the host Dallas Mavericks won their fourth straight game, beating the New Orleans Pelicans 143-130 on Friday night. Doncic made 17 of 30 field-goal attempts, including 5 of 8 from 3-point range, and Porzingis was 13 of 21, including 8 of 13 from beyond the arc. Dorian Finney-Smith added 14, Jalen Brunson had 13 and Josh Richardson 11 as the Mavericks won a shootout with the Pelicans' Zion Williamson and Brandon Ingram. Fognini tames De Minaur to set up Nadal clash

Italian 16th seed Fabio Fognini put in a clinical performance to stroll past Alex de Minaur 6-4 6-3 6-4 into the fourth round of the Australian Open on Saturday, ending the host nation's challenge in the men's singles draw. Two days after saving a match point to beat compatriot Salvatore Caruso in five sets, the 33-year-old Fognini raised his level a notch in his first meeting against the 21st seed De Minaur, the highest-ranked men's player in Australia.

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