(CNN)Lower league sides indulge in some FA Cup giant killing... NFL postseason opens with wildcard weekend... Socceroo shock in the UAE... Warriors and Kings put on three-point show... Swiss duo tighten grip on Hopman Cup ahead of Australian Open. This is your weekend sporting roundup.
Weekend in sport: FA Cup throws up surprises; NFL playoffs kick off; Champion Socceroos slump to shock defeat in Asian Cup
The "romance of the cup" is a well-worn FA Cup cliche, but fans of Barnet, Oldham Athletic and Newport County are feeling the love as the three lower-league sides overcame fancied opposition -- Sheffield United, Fulham and Leicester respectively -- to advance to the fourth round of the football's oldest cup competition.
Barnet -- currently languishing in 15th place in the National League, the fifth tier of English football -- provided arguably the shock of the day by beating Championship side United 1-0, courtesy of a Shaq Coulthirst penalty early in the first half.
For Oldham's caretaker manager, Pete Wild, it was a day to savor as his unfancied side rose to the occasion to put away Premier League Fulham 2-1, with the London side currently 59 places above the Latics in the league structure.
"It means a lot to me and my family. We're all Oldham people," he said after securing the win. "We're from a small town overshadowed by big neighbors and I'm so proud to give something back."
Newport manager Michael Flynn was equally ecstatic with his side's 2-1 win over the Foxes. "It's almost 'Roy of the Rovers' stuff, I can't believe it," he said, referencing the classic football comic. "It's the first time I've beaten a Premier League club as a manager so it's one I'll never forget. I'll have a few drinks with the wife tonight."
Elsewhere, Manchester United carried its newfound confidence under caretaker manager Ole Gunnar Solskjaer with a 2-0 win over Reading, while neighbors City equaled Spurs' 7-0 thumping of Tranmere, strolling to its own 7-0 win over Rotherham. Arsenal and Chelsea also progressed, 3-0 against Blackpool and 2-0 over Nottingham Forest, respectively.
As the NFL season moves into the do-or-die stage in the run-up to the Super Bowl in Atlanta in February, Dallas, Indianapolis and Los Angeles laid down early markers. The Cowboys' Dak Prescott inspired his teammates, edging the Seahawks, 24-22, on Saturday at AT&T Stadium.
Prescott showed he can handle the spotlight with a big fourth quarter play for a 16-yard gain, before scoring the game-winning touchdown from the one-yard line. It was a stellar start to the postseason for the 25-year-old, who also completed 22 of 33 passes for 226 yards.