Benfica and Sporting draw

With three matches left, Porto are top with 62 points, three ahead of Sporting and four of third-placed Benfica.

Sporting, unbeaten away from home, took the lead after just two minutes when Brazilian striker Liedson headed in a perfect right wing cross by Abel.

Cheered on by a crowd of more than 50,000 at the Luz stadium, Benfica equalised after 24 minutes through Italian winger Fabrizio Miccoli after Sporting's keeper Ricardo had parried a shot.

The derby was marred by skirmishes involving Benfica fans and police outside the stadium before the kickoff. Two police were slightly injured.