NFL

The Baltimore Ravens deny they tipped off the Indianapolis Colts about underinflated footballs before the AFC championship game.

Court papers released Tuesday in New England quarterback Tom Brady's lawsuit against the NFL over his four-game suspension show that the Ravens contacted the Colts about deflated footballs used in Baltimore's playoff loss to the Patriots the previous week. But the Ravens said Wednesday that was not true.

More from FoxSports

''Prior to the AFC championship game, no one from the Ravens talked to the Colts about deflated footballs,'' the Ravens said in a statement. ''We knew nothing of deflated footballs.''

The court filings included a section in which Colts equipment manager Sean Sullivan said Ravens special teams coordinator Jerry Rosburg called Indianapolis head coach Chuck Pagano about K-balls, which are used in the kicking game only. Sullivan said the Ravens were given new footballs instead of the ones properly prepared.

Pagano was an assistant coach with the Ravens before getting the top job in Indianapolis in 2012.

HOUSTON (AP) Houston Texans star running back Arian Foster has a groin injury, coach Bill O'Brien said Wednesday after practice.

The second-year head coach said Foster is still being evaluated, but he would miss time, although how much was unspecified.

Foster was second in the NFL in yards rushing per game (95.8) and sixth in total yards rushing (1,246) in 2014.

''I feel bad for him personally,'' O'Brien said. ''I think he came into this offseason and he really worked extremely hard. Came back here and ran the conditioning test really, really well. Came back and he was practicing well. But as a football team, it's next man up.''

The next man up is most likely second-year back Alfred Blue, who spelled Foster in 2014 and rushed for 528 yards and two touchdowns.

---

OLYMPICS

RIO DE JANEIRO (AP) - Rio de Janeiro Mayor Eduardo Paes stood Wednesday in an arena being built for the Olympics and said that all the venues for South America's first games are on track to be ready when the curtain comes up on Aug. 5 next year.

Paes and Carlos Nuzman, an International Olympic Committee member who heads the local organizing committee, gave a presentation on progress at the Olympic venues.

Paes said ''we are literally making a miracle happen here.''

Both men faced questions - first from Rio newspaper O Globo - about the polluted water surrounding Rio. An Associated Press study released last week showed dangerously high levels of viruses in all water-related venues.

The World Health Organization has asked the IOC to pursue virus testing in Rio during the next year.

---

LANCE ARMSTRONG

AUSTIN, Texas (AP) - The federal government wants to see Lance Armstrong's medical records from his treatments for cancer, pecifically whether his doctors knew back in 1996 that he was using performance-enhancing drugs.

Court records show that government lawyers subpoenaed the Indiana University School of Medicine on July 30 to provide records of Armstrong's treatments and donations he later made to the school.

The demand came in the government's lawsuit to recover millions of dollars in sponsorship money the U.S. Postal Service paid to Armstrong's teams from 1998-2004. Penalties could approach $100 million.

Armstrong's lawyers have asked a Washington, D.C., judge to block the subpoena. They called the release of records a violation of privacy and noted Armstrong confessed in 2013 to doping to win the Tour de France seven times. In a deposition given July 23, Armstrong admitted doping prior to 1996, his lawyers wrote.

---

GOLF

AKRON, Ohio (AP) - Jordan Spieth gets to play with Zach Johnson one tournament too late.

When last seen on the golf course, Spieth missed out on a three-man playoff at the British Open that ended his bid for a Grand Slam. He came back out and watched from the steps of the Royal & Ancient clubhouse at St. Andrews as Johnson, a good friend, won the claret jug.

The only players to win majors this year will be paired Thursday when the Bridgestone Invitational begins at Firestone.

The World Golf Championship event offers big money, free FedEx Cup points and for some of the 77 players in the field, a chance to make sure their games are in shape for the PGA Championship the following week in Wisconsin.

Spieth and Johnson are coming off three-week breaks, both taking time off to celebrate after getting back from St. Andrews.

Johnson hasn't let the silver claret jug out of his sight, though golf's oldest trophy has been put to good use.

---

SWIMMING

KAZAN, Russia (AP) - Katie Ledecky won the 200-meter freestyle at the world swimming championships Wednesday night against a stellar field that included defending champion Missy Franklin and two-time winner Federica Pellegrini.

The 18-year-old American rallied from fourth after the first two laps to touch first in 1 minute, 55.16 seconds for her second gold medal of the championships. Ledecky already won the 1,500 free, lowering her own world record in the preliminaries and final.

Pellegrini finished second in 1:55.32, and Franklin was third in 1:55.49.

Femke Heemskerk of the Netherlands took it out strongly, dipping under world-record pace on the opening lap. She was still in front through the third lap before fading to eighth.

Katinka Hosszu of Hungary, the 200 individual medley winner in world-record time, was fifth.

---

CRICKET

KARACHI, Pakistan (AP) - Pakistan's former cricket captain Wasim Akram says he escaped a gun attack in the southern port city of Karachi.

Akram said Wednesday he was on his way to a sports stadium when a man rammed his vehicle into his car and then opened fire before fleeing.

He told a Pakistani news channel that he did not know who was behind the attack.

Akram, 49, made his international debut with a one-day international against New Zealand in 1984 and was rated as one of the all-time great left-arm fast bowlers. He took 414 wickets in 104 test matches and another 502 wickets in 356 one-day internationals before retiring soon after the 2003 World Cup.

After quitting cricket, Akram became a sports commentator and started coaching Pakistani bowlers.