Olympic swimmer Ryan Lochte has been sidelined after an encounter with an enthusiastic fan.

The five-time Olympic champion tore a ligament and sprained another in his left knee last weekend during a visit to Gainesville, Florida.

Roger Federer had never lost his opening match at the ATP World Tour Finals since the elite tournament moved to London in 2009. That's all changed now.

On the back of a chaotic and disappointing season, the former World No. 1 tasted defeat for the second time in less than a week against defending champion Novak Djokovic 6-4, 6-7 (2), 6-2 on Tuesday.

Title holder Bayern Munich won 1-0 at Viktoria Plzen on Tuesday to advance to the knockout stage of the Champions League, while group rival Manchester City reached the second round for the first time by outclassing CSKA Moscow 5-2.

Paris Saint-Germain and Real Madrid missed early opportunities to qualify by being held to draws — and both had to come from behind. PSG was held 1-1 at home by Anderlecht and Real settled for a 2-2 draw at Juventus.

Three new crew members blast off Thursday for the International Space Station (ISS) on a Russian rocket, taking with them the precious cargo of an Olympic torch for the 2014 Winter Games in the Black Sea resort of Sochi.

In an unprecedented move, the Olympic torch will on Saturday be taken out into open space on a spacewalk by two Russian cosmonauts to mark Russia's hosting of the Games in February.

Top-ranked Rafael Nadal breezed past fellow Spaniard David Ferrer 6-3, 6-2 to win his first round-robin match at the ATP World Tour Finals on Tuesday.

After trading breaks in the opening set, Nadal became untouchable on serve, dictating the play from the baseline and forcing Ferrer into many errors.

FIFA announced that nearly 900,000 tickets have been allocated to fans from 188 countries in the random selection draw for the 2014 World Cup, the highest number ever in the first phase of sales.

Football's governing body said on Tuesday that Brazilians received 625,276 of the 889,305 available tickets. American residents were awarded 66,646 tickets, while the English followed with 22,257 and the Germans with 18,019.

Borussia Dortmund leads Group F on goal difference and can increase its lead against Arsenal in Group F of the Champions League. Marseille visits Napoli hoping to earn its first points.

Borussia Dortmund is seeking its eighth straight home victory, a run that helped the team reach last season's final. Arsenal is unbeaten in its last four visits to Germany and was the last team to win at Bayern Munich.

Philadelphia rookie Michael Carter-Williams has joined Shaquille O'Neal as the only NBA players to win a Player of the Week award to open a career.

Carter-Williams won the Eastern Conference honor after averaging 20.7 points and 9.0 assists in a surprising run of three wins in a week that included victories over Miami and Chicago.

LeBron James is on the verge of another milestone.

The Miami Heat forward has scored at least 10 points in 499 consecutive regular-season games and will go for No. 500 on Tuesday night when the two-time defending NBA champions visit the Toronto Raptors.

Former finalist Juan Martin Del Potro battled his way past Richard Gasquet to win his opening round-robin match at the ATP World Tour Finals on Monday after Stanislas Wawrinka grabbed the spotlight with a win in his maiden appearance at the season-ending tournament.

After Wawrinka defeated Tomas Berdych 6-3, 6-7 (0), 6-3 in Group A, Del Potro beat Gasquet 6-7 (4), 6-3, 7-5 to secure crucial points in a tough Group B that also includes Roger Federer and Novak Djokovic, who will be facing off on Tuesday.