Spectators booed an injured Novak Djokovic as he left the court in Rod Laver Arena after quitting one set into his Australian Open semifinal against Alexander Zverev on Friday.

Dealing with what he said was a torn muscle, Djokovic lost the opening set 7-6 (5) when he put a forehand volley into the net, then began shaking his head and immediately walked over to tell Zverev the match was over. The 37-year-old Djokovic packed up his equipment and walked off toward the locker room, pausing to respond to the jeers by giving two thumbs-up.

The Champions League has never before seen the kind of hectic multi-screen action that will play out in the eighth and final round of games next Wednesday.

When 18 games kick off at the same time, 9 p.m. Central European Time (2000 GMT), many eyes will be on Manchester and Stuttgart hoping to see the highest drama.

Weah. Maldini. Thuram. Simeone. Conceição. Stankovic. Martins.

The names bring back memories of Serie A in the late 1990s and 2000s. Now it's their sons taking the spotlight in the Italian league.

Vinícius Júnior reached 100 goals with Real Madrid in the team's 5-1 victory over Salzburg on Wednesday to secure a playoff spot after a slow start in the Champions League.

Vinícius scored his 99th and 100th goals, according to UEFA, moving him into third place in the top Brazilian scorers in the Champions League with 28 goals in the competition. Neymar leads the way with 43, with Kaká second on 30.

Flying in the Bundesliga, Bayern Munich is stuttering in the Champions League.

The Bavarian powerhouse lost 3-0 at Feyenoord on Wednesday for its third defeat of the campaign, denting its hopes of reaching the round of 16 without having to contest a playoff.

If this is Mohamed Salah's final season at Liverpool, he is going out in style.

The Egypt striker scored his 50th European goal for Liverpool and his 22nd in all competitions this season to help Arne Slot's team secure a place in the Champions League round of 16 with a 2-1 victory over Lille on Tuesday.

Kylian Mbappé credits a change in mentality for starting to play better for Real Madrid.

Mbappé has struggled in his first season with Madrid but has been gradually meeting the expectations that came with his high profile.

With Kylian Mbappé putting on a show again, Real Madrid returned to the top of the Spanish league.

Mbappé continued his scoring streak with a brace as Madrid routed 10-man Las Palmas 4-1 on Sunday, prompting a big ovation at Santiago Bernabeu stadium for the France star who has struggled at times in his first season with the Spanish powerhouse.

Inter Milan's goals are coming from an unusual source.

Defender Denzel Dumfries was again on target Sunday as Inter beat lowly Empoli 3-1 to keep pace with Serie A leader Napoli.

The first Champions League games to be played in January include one with shocking possible consequences in an unpredictable debut season for the 36-team format.

Paris Saint-Germain vs. Manchester City on Wednesday is a clash of super-wealthy state-backed teams currently a barely believable 25th and 22nd in the standings.