Novak Djokovic and former three-time French Open champion Gustavo Kuerten both scored in a charity football game played before a Brazilian league match in Rio de Janeiro on Sunday.

The exhibition was organized by Djokovic's Serbian countryman, Dejan Petkovic, who starred for several Brazilian clubs in the past decade.

Humbled by Celtic in the latest shock result in the Champions League, Barcelona travels to Russia this week as the competition favorites attempt for the second time to seal a place in the knockout stage.

The Champions League has thrown up a string of unpredictable scorelines this season and none bigger than Barca's 2-1 loss in Glasgow two weeks ago, preventing the Spanish giants joining FC Porto, Malaga and Manchester United in the last 16 with two games to spare.

The revitalized Los Angeles Lakers ran past the Houston Rockets 119-108 on Sunday for their fourth victory in five games since firing coach Mike Brown.

Kobe Bryant had 22 points, 11 rebounds and 11 assists for his 18th career triple-double, Dwight Howard had 28 points and 13 rebounds, and Pau Gasol scored his 15,000th career point as the Lakers ran away from their second straight opponent since coach Mike D'Antoni took over their practices.

It's a job for two when the Czechs win Davis Cup finals.

Tomas Berdych and Radek Stepanek gave the Czech Republic the title for the first time as an independent nation by beating Spain 3-2 in the final on Sunday. Each spent about 10 grueling hours on court, playing the opening singles, teaming up for the doubles and then completing the reverse singles.

McLaren's Lewis Hamilton won the United States Grand Prix in Austin, Texas on Sunday ahead of 2012 title rivals Sebastian Vettel and Fernando Alonso.

Vettel, who started from pole but was overtaken by Hamilton on lap 42, now takes a 13-point lead over Alonso to the season-closing Brazilian Grand Prix next Sunday.

Manchester City went top in the Premier League by crushing Aston Villa 5-0 on Saturday, but third-placed Chelsea have now gone four games without a win after losing 2-1 at West Bromwich Albion.

David Silva's scrappy 43rd-minute goal put City ahead at the Etihad Stadium, before penalties from Sergio Aguero and Carlos Tevez -- awarded for handballs by Andreas Weimann and Barry Bannan -- made it 3-0.

Wigan midfielder Ben Watson suffered a broken leg in a collision with Raheem Sterling during his side's 3-0 defeat against Liverpool on Saturday.

Watson was forced off in the 32nd minute at Anfield when Liverpool winger Sterling's knee crashed into his right leg as they contested an aerial challenge.

The Memphis Grizzlies handed the New York Knicks their first defeat of the NBA season on Friday, another big win in their impressive early campaign.

Zach Randolph had 20 points and 15 rebounds and Marc Gasol added 24 points and seven rebounds as the Grizzlies beat the Knicks 105-95.

The Los Angeles Lakers paid tribute to Kareem Abdul-Jabbar Friday, unveiling a statue of the NBA's all-time leading scorer in his trademark sky-hook pose outside their Staples Center arena.

Abdul-Jabbar became the sixth Los Angeles sports figure memorialized with a statue outside the downtown arena, joining fellow NBA greats Magic Johnson and Jerry West, the NHL's "Great One" Wayne Gretzky, boxer Oscar de la Hoya and longtime Lakers broadcaster Chick Hearn.

The Czech Republic's Tomas Berdych beat Spain's Nicolas Almagro in a four-hour five-setter on Friday to tie the Davis Cup final at 1-1 after day one and keep Czech hopes alive.

Berdych, the world number six and the Czech number one, beat 11th-ranked Almagro on the hardcourt of Prague's O2 Arena 6-3, 3-6, 6-3, 6-7 (5/7), 6-3 in three hours and 58 minutes.