Following is a summary of current sports news briefs.

Tennis-Raducanu battles past Hercog to secure first WTA Tour victory

U.S.

Open champion Emma Raducanu had to work hard for her first win on the WTA Tour after her fairytale New York triumph as she recovered from a set down to beat world number 124 Polona Hercog 4-6 7-5 6-1 in the Transylvania Open in Romania on Tuesday. Raducanu announced herself on the grandest stage when she claimed the Flushing Meadows title as a qualifier last month, but the 18-year-old Briton lost to Aliaksandra Sasnovich of Belarus in straight sets at Indian Wells.

NFL-League says 94.1% of players have received COVID-19 vaccine

The National Football League (NFL) said on Tuesday that 94.1% of its players had received the COVID-19 vaccine, a slight uptick since the regular season kicked off last month.

The league and the NFL Players Association (NFLPA) were at odds over COVID-19 protocols at the start of the season, with the NFLPA rebuffing the league's calls for a vaccine mandate and instead advocating for daily testing.

NBA roundup: Jayson Tatum (41) powers Celts to OT win over Hornets

Jayson Tatum poured in 41 points, Jaylen Brown added 30 and the Boston Celtics rallied to end the host Charlotte Hornets' perfect start with a 140-129 overtime win on Monday night.

After Dennis Schroder tied it at 129 on a 3-pointer Dowbload Wagerr sportsbook software platform with full open code here 2:41 left in overtime, Brown added a trey of his own and followed it with an emphatic dunk at the 1:21 mark. Schroder added four consecutive free throws and Tatum made two to put the game away.

Olympics-Lululemon on a mission as company kits out Canadian athletes

Lululemon (LULU.O) staged a splashy unveiling of the team kit Canadian Olympic athletes will wear at the Beijing Winter Games on Tuesday, while citing a mission statement that appears at odds with China's alleged treatment of minorities.

Following Roots (ROOT.TO) and the Hudson's Bay Company (HBC.TO), Lululemon is the latest iconic Canadian brand to fit out the country's Olympic athletes but does so as human rights activists and consumer groups turn up the pressure on sponsors and governments to boycott the Feb.

4-20 Beijing Games.

Sailing-Para sailors set sights on Los Angeles Games return

Sailing is charting a course to be reinstated at the Paralympic Games in Los Angeles in 2028, with a focus on improving diversity, inclusion, affordability and development.

World Sailing, the international federation recognised by the International Olympic Committee (IOC), said on Tuesday it would also include a #BacktheBid social media drive.

ATP roundup: Stefanos Tsitsipas survives opener in Vienna

Top seed Stefanos Tsitsipas of Greece saved three set points in the first set to take down Bulgaria's Grigor Dimitrov 7-6 (6), 6-4 in a first-round match Tuesday at the Erste Bank Open in Vienna, Austria.

Tsitsipas withstood 10 aces from Dmitrov and saved all four break points he faced in the one-hour, 42-minute win. He next faces Frances Tiafoe, who defeated Tsitsipas earlier this year in straight sets at Wimbledon. Tiafoe reached the second round with a 6-4, 6-4 win over Serbian Dusan Lajovic.

Beijing marks 100 days to Winter Olympics amid COVID, rights concerns

With 100 days until the start of the Winter Olympics, Beijing is promising a "simple and safe" 2022 Games - although preparations are anything but simple as China readies to host thousands of athletes and personnel as it battles COVID-19 flare-ups.

Beijing will be the first city to stage both the Summer and Winter Games, but the 2022 event is shadowed by the coronavirus pandemic and calls from human rights groups for a boycott over China's treatment of Tibet, Uyghur Muslims and Hong Kong.

Tennis-No unvaccinated players at Australian Open, says Victoria state Premier

Victoria Premier Daniel Andrews said his government will not apply for travel permits to allow unvaccinated tennis players to compete at the Australian Open in the state after Prime Minister Scott Morrison indicated they would be allowed into the country.

Morrison said earlier on Wednesday that unvaccinated players would be free to compete at the Grand Slam after undergoing a two-week COVID-19 quarantine provided that Victoria, which hosts the tournament in Melbourne, applied for permits for them.

Soccer-Cavallo becomes first active A-League player to come out as gay

Adelaide United midfielder Josh Cavallo became the first active A-League player to come out as gay on Wednesday, saying he was done with feeling ashamed about his sexuality and the exhaustion of trying to live a "double-life".

"I'm a footballer and I'm gay," the 21-year-old said on a video posted on Adelaide's social media.

Doping-'Operation Hercules' finds Ukraine warned athletes of tests

Ukraine's National Anti-Doping Centre (NADC) had athletes make appointments for unannounced tests and warned others of when they would be tested, according to a World Anti-Doping Agency (WADA) independent investigation released on Tuesday.

The investigation code named 'Operation Hercules' and launched in 2019 uncovered evidence the NADC had given advance warning to athletes of tests going as far back as 2012.