Manchester United have sacked manager Ruben Amorim.

Frustrated Cricket Australia boss Todd Greenberg vowed to take up "archaic" bad light rules with the sport's governing body after a third of the opening day at the fifth Ashes Test was lost.

Defending champion Jiri Lehecka outlasted fellow Czech Tomas Machac over three sets Monday to book his place in the second round of the season-opening Brisbane International.

Novak Djokovic announced on Sunday he was leaving the professional players' union he co-founded in 2020, citing "concerns regarding transparency and governance" within the body.

Hugo Broos rejected suggestions his team had regressed after they exited the Africa Cup of Nations in the last 16 against Cameroon on Sunday.