Amir Khan insisted Wednesday he is ready for the fight of his life when he steps up two divisions to take on Mexican world middleweight champion Saul "Canelo" Alvarez in Las Vegas this weekend.

The British boxer, who normally boxes at welterweight, faces a daunting battle against the hard-hitting Alvarez on Saturday in a fight which many believe is a risk too far for the 29-year-old from Bolton.

Former champion Vincenzo Nibali is counting on his past experience in cycling's Grand Tours when he saddles up on Friday looking to secure a second Giro d'Italia crown.

"It's never easy trying to win a race twice," said Nibali, who claimed his maiden Giro title in 2013 after an epic, snow-hit finale in the Dolomites mountains.

Cristiano Ronaldo lauded the impact made by Real Madrid boss Zinedine Zidane as the Frenchman led the Spanish giants into the Champions League final with a 1-0 win over Manchester City on Wednesday.

Brazilian midfielder Fernando's first-half own goal was the only difference between the sides over two legs as Real set up a repeat of the 2014 final against local rivals Atletico Madrid in Milan on May 28.

Gareth Bale believes he has turned a corner at Real Madrid after leading the Spanish giants to their second Champions League final in his three years at the club.

Bale's effort was deflected by Brazilian midfielder Fernando into his own net to hand Madrid a 1-0 win on the night and on aggregate over Manchester City to set up a final date with local rivals Atletico Madrid in Milan on May 28.

Veteran big man Chris Bosh, reportedly in a standoff with the Miami Heat over his health, won't return for the Heat in this NBA post-season, the player and team said on Wednesday.

"The Miami Heat and Chris Bosh announce that Chris will not be playing in the remainder of the 2016 NBA Playoffs," a joint statement from player and club said.

Real Madrid will face Atletico Madrid in the Champions League final for the second time in three years after overcoming Manchester City 1-0 in their semi-final second leg on Wednesday.

Brazilian midfielder Fernando deflected Gareth Bale's cross into his own net after 20 minutes at the Santiago Bernabeu for the only goal of the tie after the first leg ended goalless.

Tottenham Hotspur midfielder Mousa Dembele faces a lengthy ban after the Football Association on Wednesday charged him with violent conduct over an incident involving Chelsea's Diego Costa.

Dembele appeared to gouge Costa's eye during Monday's 2-2 draw between the teams at Stamford Bridge and the FA said that if the Belgian midfielder is found guilty, the standard three-game ban will be "clearly insufficient".

Having stunned world football by defying odds of 5,000-1 to win the Premier League, the challenge facing Leicester City is how to preserve their new-found status.

With preparations for a first ever Champions League campaign high on the agenda, AFP Sport looks at five issues that the club's inspirational manager Claudio Ranieri must keep in mind.

Leicester City manager Claudio Ranieri believes that it will take up to 20 years for an unfancied team to emulate his side's achievement by winning the Premier League.

Leicester defied odds of 5,000-1 to prevail ahead of the division's glamor clubs, captivating fans around the world and turning their previously unheralded players into household names.

Pep Guardiola says he views his three-year reign at Bayern Munich as a failure having again been unable to steer the Bavarians to the Champions League final.

Bayern lost the semi-final first leg 1-0 in Spain, and went out on away goals despite beating Atletico 2-1 in return match in Munich on Tuesday.