Rafael Nadal's doctor says the 14-time Grand Slam winner will receive stem cell treatment on his ailing back.

Angel Ruiz-Cotorro told The Associated Press by phone on Monday that "we are going to put cells in a joint in his spine" next week in Barcelona.

The president of Germany has decorated the World Cup-winning squad with the country's highest honor for sports, rewarding what he called a "convincing performance that is recognized un-grudgingly by all its opponents."

President Joachim Gauck, joined by Chancellor Angela Merkel, presented the players with the Silver Laurel Leaf in a ceremony at the head of state's Bellevue Palace.

Five years after German international Robert Enke's suicide, his widow says attitudes towards depression have softened in Germany, but national football chief Wolfgang Niersbach insists little has changed.

Enke, who was Germany's first-choice goalkeeper at the time, took his own life on November 10, 2009 by throwing himself under a commuter train after a six-year battle with depression.

Brazilian international Oscar has signed a new five-year contract with Chelsea that will keep him at Stamford Bridge until 2019, the English Premier League leaders announced Monday.

The 23-year-old attacking midfielder joined the London club from Internacional in 2012 and has since scored 27 goals in 126 appearances, including 92 starts, for the Blues.

Nico Rosberg may need some help from his friends, but he is utterly convinced he can win the season-ending "double jeopardy" Abu Dhabi Grand Prix and claim the drivers’ world title.

After ending championship leader and Mercedes team-mate Lewis Hamilton’s run of five straight wins, the 29-year-old German shrugged aside concerns over the much-criticized and controversial introduction of double points at the finale.

Japan's Kei Nishikori admitted he had to overcome a case of severe stage-fright before marking his ATP Tour Finals with an impressive 6-4, 6-4 victory over Andy Murray.

Nishikori is the first Asian singles player to qualify for the prestigious season-ending tournament and he had the honor of playing in the opening match against former Wimbledon champion Murray on Sunday.

Newcastle United manager Alan Pardew thanked club owner Mike Ashley for standing by him after the Magpies recorded their fifth straight win.

Ayoze Perez's delightful back-heel and Fabricio Coloccini's header saw Newcastle enjoy a 2-0 victory away to West Bromwich Albion on Sunday that sent the north-east side soaring into the top eight of the Premier League.

Arsenal manager Arsene Wenger all but conceded the Premier League title to leaders Chelsea after seeing his side let slip a one-goal lead in a 2-1 loss away to Swansea on Sunday.

Defeat left the Gunners 12 points behind Jose Mourinho's table-toppers after only 11 league games played.

Paris Saint-Germain defeated arch rivals Marseille 2-0 at the Parc des Princes on Sunday as the Ligue 1 title race was thrown wide open.

The two-time defending champions dominated their visitors from the south in an intense encounter and wrapped up three crucial points thanks to an opportunist strike from Brazilian Lucas Moura and a close-range header from Edinson Cavani.

The international volleyball federation FIVB on Sunday said it will not allow Iran to host international events as long as women are banned from attending the game.

The announcement comes a week after a British-Iranian women, Goncheh Ghavami, was jailed by a Tehran court, five months following her arrest in the city after trying to attend a volleyball match.