​In the playoffs, when the best teams meet, games are often decided by a mistake here or there, or a penalty called or not called.

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The NFL moved the play-off game between the Kansas City Chiefs and the Pittsburgh Steelers at Arrowhead Stadium from an afternoon start to an evening game, citing public safety concerns in the face of a potentially crippling ice storm in Kansas City this weekend.

After an anti-climatic Wild Card Weekend where all four home teams were favoured and won easily, the second weekend of the NFL play-offs promises some much tighter contests.

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The NFL's return to Los Angeles came to full fruition on Friday. Dean Spanos, the chairman of the San Diego Chargers, announced publicly what he'd told NFL Commissioner Roger Goodell and some fellow owners a day earlier: that he is moving his franchise to L.A. to join the Rams, who relocated there from St. Louis last year.

Everyone wants to know what's next for Ronda Rousey following the mixed martial artist's cryptic Instagram post. As she promises to be return "rebuilt", here's what may be on the horizon for the fallen UFC star.

Former American National Football League star Aaron Hernandez's tattoos may be shown as evidence at his upcoming double-murder trial because they appear to refer to the killings at issue, a Massachusetts judge ruled.

Australian punter Jordan Berry and his Pittsburgh Steelers are two wins away from the Super Bowl after crushing the Miami Dolphins in the first round of the NFL playoffs.

The Houston Texans, behind a defense that smothered rookie Oakland quarterback Connor Cook throughout, cruised to a 27-14 victory over the Raiders in an AFC wild card playoff game in Houston.

The "face of the franchise" in the NFL is nearly always the team's quarterback. In an odd twist, as the playoffs begin this weekend, a few of the teams will find out what happens when that face belongs to someone doing on-the-job training.

The NFL playoffs get underway this weekend, with eight teams in sudden-death action. Here, we preview all four week-one clashes.

Australian punters Brad Wing and Jordan Berry are headed to the NFL playoffs.

Ronda Rousey has lost to Brazil's Amanda Nunes in her first UFC fight since losing her title to Holly Holm in Melbourne 13 months ago.

Reports of sexual assaults on and around Stanford's campus increased to 39 in 2015, from 21 in 2010, according to data Stanford compiles under federal law, though it is possible victims were coming forward more often, rather than there being more attacks.

Ronda Rousey returns on Friday (US time) after a 13-month absence to take on Amanda Nunes for the bantamweight title at UFC 207 but don't expect to hear about it from her.

The NFL will wrap up the regular season next weekend but the playoffs field already is coming into focus.

Santa delivered for LeBron James and his Cleveland Cavaliers.

Kyrie Irving dropped a fadeway jumper over Klay Thompson with 3.4 seconds left as Cleveland came back on Golden State - just like they did last June in the NBA Finals - to beat the Warriors 109-108.

It's the penultimate round of the NFL regular season and everything is on the line.