John McEnroe said Wednesday he would have been better off never trying to compare Serena Williams to men's tennis players after the furor over his remark that she would rank "like 700 in the world".

Three days after his comments to National Public Radio were aired, the saga appeared to finally end as McEnroe, a retired tennis star turned television commentator, spoke on an ESPN conference call ahead of Wimbledon.

Facebook will broadcast Champions League matches for American internet users under a deal with Fox Sports, which will host the livestreams on its pages, the channel said Tuesday.

Andy Murray has suffered an injury scare ahead of Wimbledon as the world number one pulled out of an exhibition match at the Hurlingham Club due to a sore hip. Murray had scheduled two matches at the Aspall Tennis Classic event following his shock first round exit against Australian world number 90 Jordan Thompson at Queen's Club last week. The 30-year-old Scot had been due to face Lucas Pouille, but his management announced on Tuesday that he would not take to the court because his hip was "a bit sore". The decision was described as a precaution, with Murray still planning to play the second match against an as-yet-unnamed opponent in west London on Friday.

Germany's Premier League stars Emre Can and Shkodran Mustafi expect a tough battle against Mexico in Thursday's Confederations Cup semi-final as the world champions chase more silverware in Russia.

Copa America champions Chile will try to curb Portugal's superstar Cristiano Ronaldo in Wednesday's Confederations Cup semi-final with the goal-ace in rich form despite the tax storm brewing in Spain.

FIFA's referees chief said Monday he wants less delays caused by the video assistant referee and to reduce disruptions from the system being tested for next year's World Cup.

Tennis legend John McEnroe says while he has great respect for Serena Williams as the best of her gender, the 23-time Grand Slam winner would be the 700th ranked player in the men's game.

A top North Korean sports official voiced doubts over a proposal by South Korean President Moon Jae-In to form a unified Olympic team, citing political tensions and a lack of time, a report said.

A crazy Sebastian Vettel 'freaked out' under pressure in his 'road rage' eruption during Sunday's Azerbaijan Grand Prix – and is likely to be hit back with Lewis Hamilton's fist, according to Mercedes boss Niki Lauda.

Martin Rodriguez rescued a 1-1 draw for Chile against Australia on Sunday to send the South American champions through to a Confederations Cup semi-final against Portugal.