Debt-struck Madrid is betting its penny-pinching bid to host the Olympics in 2020 will reap rich economic dividends for recession-hit Spain.

The Spanish capital is banking on a low-cost $5 billion (3.8 billion euros) Olympic bid that relies heavily on existing stadiums to surprise Tokyo and Istanbul when Olympic chiefs make their decision in Buenos Aires on Saturday.

Looking dazed and sunburned, U.S. endurance swimmer Diana Nyad waded ashore Monday and became the first person to swim from Cuba to Florida without the help of a shark cage.

The 64-year-old Nyad swam up to the beach just before 2 p.m. EDT, about 53 hours after starting her journey from Havana on Saturday. As she approached, spectators waded into waist-high water and surrounded her, taking pictures and cheering her on.

After having all summer to strengthen their squads, Arsenal and Manchester United managed to rush through just two significant signings in a $100-million spree as the transfer window was closing.

Arsenal signed playmaker Mesut Ozil for a club record 50 million euros ($66 million) from Real Madrid on Monday, and United bought midfielder Marouane Fellaini from Everton for 27.5 million pounds ($43 million).

Roberta Vinci will face a fellow Italian in the U.S. Open quarterfinals for the second straight year.

And the 10th-seeded Vinci will also be taking on an Italian for the third straight round at this year's tournament after she and longtime friend Flavia Pennetta both won Monday.

Rafael Nadal believes that facing Roger Federer at the U.S. Open might have to remain just wishful thinking after the worrying decline of the Swiss superstar continued in New York.

Federer, the winner of a record 17 Grand Slam titles, fell to Spanish 19th seed Tommy Robredo 7-6 (7/3), 6-3, 6-4 in the fourth round, his earliest exit from the U.S. Open in 10 years.

Liverpool was the early mover in what is expected to be a frantic transfer deadline day in the Premier League on Monday, taking Chelsea forward Victor Moses on loan and recruiting young defenders Mamadou Sakho and Tiago Ilori to increase their number of summer signings to eight.

Nigeria international Moses will spend the season at Anfield after seeing his chances of first-team action at Chelsea plummet following the arrival of forwards Willian and Andre Schuerrle.

After the year's most drawn-out transfer saga, it's finally official: Gareth Bale is a Real Madrid player.

Madrid announced Sunday that Bale has signed a six-year contract, and a person familiar with the deal said the fee was a world-record 100 million euros ($132 million). The person spoke on condition of anonymity because financial details are not being disclosed.

Taking eight of the last nine games, defending champion Serena Williams returned to the U.S. Open quarterfinals by beating Sloane Stephens 6-4, 6-1 in a fourth-round match between the two top Americans.

The 20-year-old Stephens, one of only three players to beat Williams this season, matched the world No. 1 for 40 minutes. After that, it was one way.

Kyle Busch's pit crew got his car running like he wanted, then got him on the track ahead of everyone else.

The volatile driver took it from there, locking up a spot in the Chase for the Sprint Cup championship that slipped away last year.

Liverpool and Arsenal relied on goals from their in-form strikers to secure 1-0 home wins over their biggest rivals on Sunday, handing Manchester United and Tottenham their first defeats of the Premier League season.

England international Daniel Sturridge flicked home a fourth-minute header from close range on his 24th birthday in Liverpool's gritty victory over United at Anfield, putting his team top of the standings on a maximum nine points.