Club doctors will have the final say on whether a player stays on the pitch after a head injury during English Premier League matches as part of new guidelines on concussion introduced for the new season.

Regulations for the management of concussion have been tightened up by the English Football Association, with players now forced off the field of play and not allowed to return if there has been a "confirmed or suspected period of loss of consciousness."

Costa Rica goalkeeper Keylor Navas on Tuesday said he was ready for the challenge of beating off the competition for places at Real Madrid after completing his move to the Santiago Bernabeu.

"I know I will have to work extremely hard. Madrid have the best players in the world in every position, they have two excellent goalkeepers," said Navas as he was unveiled to fans and the media at the home of the European champions.

Xavi Hernandez, Spain's leading playmaker in its run of three major titles, has retired from international duty after a disappointing World Cup.

Flanked by fellow Barcelona midfielder Andres Iniesta, Xavi was the key component of Spain's tiki-taka passing style during its unprecedented run of winning the World Cup in 2010 and two European championships in 2008 and 2012.

Corinne Diacre became the first woman to coach a men's professional football team in a competitive match in France on Monday, but saw her Clermont side lose 2-1 at Brest in the second division.

Diacre's managerial stint in men's football got off to a perfect start when Souleymane Sawadogo finished off a counterattack in the ninth minute, prompting only a small smile from his coach in celebration. But the match changed in the second half when Bruno Grougi converted a penalty for Brest, and Alexandre Alphonse then scored the winner for the home side.

A German court on Tuesday dropped the bribery case against Bernie Ecclestone after the Formula One chief agreed to make a $100 million payment, ending a trial that lasted more than three months.

The Munich state court announced its decision to drop proceedings against the 83-year-old Ecclestone hours after prosecutors agreed to the move. Ecclestone is now free to concentrate on running the global racing series.

Sabine Lisicki upset 13th-seeded Sara Errani 6-1, 7-5 in the first round of the Rogers Cup on Monday.

Errani, the 2012 French Open runner-up, is most comfortable on clay, while the 29th-ranked Lisicki likes the faster surfaces. Lisicki, the 2013 Wimbledon runner-up, hit the fastest recorded serve in WTA history (131 mph) last week at Stanford.

The ATP tour on Monday canceled the inaugural Israel Open that was set to be played next month in Tel Aviv because of security concerns "arising from the military conflict in the region."

The tournament was set to be held September 15-21 and would have been the first ATP tournament held in Israel since 1996.

Sitting on the deck at his beloved Meadowbrook, Michael Phelps glances toward the pool where he was once afraid to put his face in the water.

"This is me," he said, a slight smile curling off his lips. "This is home."

Rory McIlroy rallied from a three-shot deficit to win the Bridgestone Invitational and return to No. 1 in the world.

In his first start since a wire-to-wire win in the British Open, McIlroy picked up his first World Golf Championship title at Firestone. And just like Royal Liverpool, the 25-year-old from Northern Ireland made it look easy.

Although it's easy to dismiss a preseason tournament, Manchester United manager Louis van Gaal understands the significance of this next game.

There will be at least some bragging rights on the line in Monday night's clash against English rival Liverpool. That match in the Miami area is the title game of the International Champions Cup. After United's shocking seventh-place finish in the Premier League last season, van Gaal has a chance to win this tournament less than a month after officially taking over as manager.