Angry fans of seven-time champions AC Milan have turned on club president Silvio Berlusconi for sacking Sinisa Mihajlovic and appointing yet another coach with no top level experience.

"Mihajlovic is just the latest innocent (coach) to pay for the mismanagement of the club, all with the complicit approval of President Berlusconi," a prominent supporters group said on Wednesday.

Cristiano Ronaldo reveled in the glory of scoring a hat-trick to inspire a stunning Real Madrid comeback to reach the Champions League semi-finals with a 3-2 aggregate victory over Wolfsburg on Tuesday.

The Spanish giants made amends for their shock 2-0 defeat in Germany six days ago as Ronaldo struck twice in just over 60 seconds early on before sealing the comeback with a trademark free-kick 13 minutes from time for a 3-0 victory on the night.

Five talking points ahead of this week's Chinese Grand Prix in Shanghai:

1. Will the real Lewis Hamilton please stand up?

Paris Saint-Germain have some serious soul-searching to do after once again coming up short in the Champions League as they exited the competition at the hands of Manchester City on Tuesday.

A 1-0 defeat in England saw PSG lose 3-2 on aggregate as they became the first team to lose in the quarter-finals of the Champions League in four consecutive seasons.

Three-time world figure skating champion and Japanese national sweetheart Mao Asada has declared for the first time that she will aim to compete at the 2018 Pyeongchang Olympics.

Asada, 25, took a year off after winning the World Figure Skating Championships in 2014.

The Indiana Pacers clinched the seventh seed in the Eastern Conference with a 102-90 victory over New York on Tuesday, avoiding a daunting opening postseason with Cleveland.

The Pacers win, coupled with the Miami Heat's 99-93 victory at Detroit, means Indiana will now play second seeded Toronto in the first round of the playoffs.

Manchester City manager Manuel Pellegrini backed his players to go on and win the Champions League after they overcame Paris Saint-Germain to reach the semi-finals for the first time.

Having procured two away goals in last week's 2-2 first-leg draw, City went into Tuesday's home leg in a position of strength, but it was not until Kevin De Bruyne struck in the 76th minute that their passage to the last four was secure.

It was perhaps inevitable that Jurgen Klopp's Liverpool would produce their most Borussia Dortmund-like performance at the home of his former club.

In last week's Europa League quarter-final first leg at the Westfalenstadion, Klopp watched his Liverpool players press and harry like the Dortmund team he steered to the highest echelon of the European game.

LeBron James scored 34 points as the Cleveland Cavaliers assured themselves home-court advantage through the Eastern Conference playoffs with a 109-94 defeat of the Atlanta Hawks on Monday.

James produced a dominant performance in the first three quarters before sitting out the final quarter as Cleveland laid down a marker for the postseason with an impressive win that guarantees them top spot.

Cameron McEvoy has zoomed into gold medal calculations for the 100-meters freestyle at the Rio Olympics with the third fastest time in history at the Australian Championships in Adelaide.

The 21-year-old physics student overpowered a strong field to win the sprint late Monday in a new Commonwealth and Australian record of 47.04 seconds in this year's fastest time in the event.