Violence flared in Italian soccer Sunday, with one fan stabbed, 20 sent to the hospital and scores of people injured inside and outside Rome's main stadium.

Fans fought with each other and police inside and outside Stadio Olimpico, where Napoli upset Italian champion Lazio 2-1. One fan was stabbed in the thigh and a police officer's leg was broken.

Nicola Amoruso put Napoli ahead early and an own-goal by Giuseppe Pancaro made it 2-0. Lazio goalkeeper Angelo Peruzzi was ejected for handling the ball outside his area in the final minute of the first half.

AS Roma took an eight-point lead in the standings after winning 2-0 at third-place Atalanta. Marco Delvecchio and Dammiano Tommasi had the two goals. Roma played a man short for the last 23 minutes after the ejection of Cristiano Zanetti.

In England, Manchester United won 2-1 at Division One upstart Fulham to reach the fourth round of the FA Cup despite being outplayed much of the first half. United broke a 1-1 tie when substitute Teddy Sheringham scored with two minutes left.

Also Sunday, Newcastle and Aston Villa tied 1-1. Steve Stone put Villa ahead 1-0 and Nolberto Solano tied it with 10 minutes to go.

On Saturday, 13 more Premier League teams made it to the last 32 of the prestigious cup competitions by beating teams from the lower divisions.

Of the leading contenders, Arsenal won 1-0 at Carlisle, which is last in Division Three; Liverpool outplayed Rotherham 3-0; defending champ Chelsea crushed Peterborough 5-0; and Leeds edged Barnsley 1-0.

Charlton came closest to losing. It trailed semipro Dagenham and Redbridge until John Salako scored a late goal for a 1-1 tie.

In Spain, John Carew's goal helped Valencia beat Racing 1-0 and retain first place.

Real Madrid won its seventh straight league game, beating Alaves 3-1. It trails Valencia on goal difference. Both teams have 35 points after the 17th round of the season. But Real Madrid has played just 16 games because of a scheduling conflict.

The German Bundesliga is in the middle of a winter break.