NFC North

Matt Hasselbeck signed a free agent deal with the Indianapolis Colts on Tuesday, a day after the 14-season National Football League quarterback was released by the Tennessee Titans.

The National Football League joined GE, a world leader in medical imaging, on Monday in launching a $60 million research program aimed at improving diagnosis and treatment of traumatic brain injuries.

Two decades after NFL legend Joe Montana left the San Francisco 49ers for Kansas City, another star quarterback -- Alex Smith -- is set to leave the 49ers and join the Chiefs, according to reports.

Minnesota Vikings running back Adrian Peterson underwent successful hernia surgery on Thursday to repair a torn abdominal muscle, the National Football League team announced.

Legendary coach Bill Parcells, seven-time Pro Bowl player Warren Sapp and star tackle Jonathan Ogden were among seven people elected to the American Pro Football Hall of Fame.

Concussion has become a major concern in American football and ice hockey, as star players are sidelined and former players increasingly speak out about the long-term health effects of head injuries.

Frank Gore had a pair of touchdown runs in the second half as the San Francisco 49ers stormed back from a 17-point deficit to beat the Atlanta Falcons 28-24 and earn a trip to the Super Bowl.

Frank Gore had a pair of touchdown runs in the second half as the San Francisco 49ers stormed back from a 17-point deficit to beat the Atlanta Falcons 28-24 and earn a trip to the Super Bowl.

Frank Gore had a pair of touchdown runs in the second half as the San Francisco 49ers erased a 17-point deficit to beat the Atlanta Falcons 28-24 and earn a trip to the Super Bowl.

The New England Patriots host Ray Lewis and the Baltimore Ravens with a Super Bowl berth on the line on Sunday -- a rematch of last year's American Conference championship game.

The Philadelphia Eagles and Chicago Bears named new head coaches on Wednesday, with the Eagles confirming they had lured Chip Kelly from the University of Oregon.

Matt Bryant kicked a 49-yard field goal with eight seconds left as the Atlanta Falcons thwarted a fourth-quarter surge by Seattle for a 30-28 second-round NFL playoff victory.

Justin Tucker booted a 47-yard field goal in the second overtime to give the Baltimore Ravens a wild 38-35 victory over the Denver Broncos in the second round of the NFL playoffs.

Justin Tucker booted a 47-yard field goal in the second overtime to give the Baltimore Ravens a wild 38-35 victory over the Denver Broncos in the second round of the NFL playoffs.

Peyton Manning's comeback trail meets Ray Lewis's farewell tour on Saturday when Manning's Denver Broncos host the Baltimore Ravens in the second round of the NFL playoffs.

Doctors who examined the brain of Junior Seau found the former NFL star who killed himself aged 43 in May had a form of chronic brain damage that can cause dementia and depression, his family told ABC News.

Aaron Rodgers and the Green Bay Packers took full advantage of the depleted Minnesota Vikings, cruising to a 24-10 victory in the first round of the NFL playoffs.

Aaron Rodgers and the Green Bay Packers took full advantage of the depleted Minnesota Vikings, cruising to a 24-10 victory in the first round of the NFL playoffs.

Arian Foster rushed for 140 yards and a touchdown as the Houston Texans beat the Cincinnati Bengals 19-13 in the first round of the NFL playoffs.

With the National Football League's regular season done and dusted, it's time for the playoffs, and history shows that a team from the wild card weekend usually makes a deep run.