Swiss tennis great Roger Federer plays with a shuttlecock during intermission at the International Tennis Invitational Tournament in Hangzhou, east China's Zhejiang Province, December 29, 2019.

American ski star Mikaela Shiffrin makes it a clean sweep after winning the 43rd slalom of her career during the FIS Alpine Ski World Cup in Lienz, Austria, December 29, 2019.

Chelsea's Jorginho (C) clashes with Arsenal's Alexandre Lacazette (R) as Fikayo Tomori rushes to intervene during their Premier League game in London, UK, December 29, 2019.

Trent Harris (R) of the the Miami Dolphins sacks Tom Brady of the New England Patriots as the Patriots suffer a shocking loss to the Dolphins during their NFL game in Foxborough, U.S., December 29, 2019.

Jeremy Lin (C) of the Beijing Ducks tries to break through the defense in the team's win over the Nnanjing Monkey Kings in Nanjing, east China's Jiangsu Province, December 28, 2019.

Zhu Ting (L) of Team Tianjin spikes against Team Beijing during their Chinese Women's Volleyball Super League semifinals in Beijing, China, December 28, 2019.

Yacht Scallywag of China's Hong Kong SAR leads the team in a race down Australia's east coast, December 27, 2019.

The crowd cheers after Al Horford #42 of the Philadelphia 76ers hits a three-pointer in the final seconds of their NBA Christmas game against the Milwaukee Bucks in Philadelphia, U.S., December 25, 2019.

Aaron Jones walks off the field after the Green Bay Packers' 23-10 win over the Minnesota Vikings to clinch the NFC North Division title Minneapolis, U.S., December 23, 2019.

Norway's Rasmus Windingstad competes on his way to win at FIS Alpine Ski World Cup men's parallel giant slalom in Alta Badia, Italy, December 23, 2019.