Porto seal title at Benfica

Fredy Guarin and Hulk scored to seal victory for unbeaten Porto, who moved 16 points ahead of their Lisbon rivals with just five games to go.

A howler by Benfica's Spanish keeper Roberto gifted Porto the lead on nine minutes when he fumbled a soft cross by Colombian midfielder Guarin and touched the ball into his own net.

Last season's champions Benfica levelled from the spot after Argentine defender Nicolas Otamendi fouled his compatriot Franco Jara and forward Javier Saviola converted the penalty in the 15th minute.

Falcao should have added Porto's third on 56 minutes but after stealing the ball from Sidnei, who was Benfica's last man in defence, he sent his shot just wide.

The club's seventh title in the last decade came in young coach Andre Villas-Boas' first season in charge.

The 33-year-old Portuguese worked for several years as Jose Mourinho's assistant and scout, first at Porto and then at Chelsea and Inter Milan.

"We battled throughout to show we are the best team even though the press insisted on believing otherwise... but we proved it in this most difficult of venues," he told reporters.

"We showed who plays the best football. This was constantly ignored, on a daily basis by everyone so our cry of revolt against that helped us, with merit due to the players, to win the title," he added.

The northern club would become only the second team in the league's history to complete a season undefeated if they avoid losing any of their remaining five games.