Republic of Ireland missed out on a place in the last-16 at the Cazoo World Cup of Darts after Portugal fought back to win 5-4 at the Sparkassen Arena in Jena, Germany.

William O'Connor and Steve Lennon were representing the Irish side and held advantages over their opponents before Portuguese duo Jose De Sousa and Jose Marques fought back from 2-0 and 3-1 down to triumph.

O'Connor secured the opening two legs for Ireland as he took out 94 and double five, while Lennon took leg four for a 3-1 advantage.

But Portugal followed up a 96 finish from Marques in the third leg with checkouts of 78 and 76 from De Sousa to level, before they edged the seventh leg to take a 4-3 lead.

Lennon pinned double four to take the game to a winner-takes-all decider, but Portugal were first to a finish and De Sousa posted tops to complete a 14-darter as they beat Ireland to a place in round two.

Northern Ireland advanced to face the Portuguese as Daryl Gurney and Brendan Dolan survived a scare en route to victory over Hong Kong.

Kai Fan Leung and Man Lok Leung missed five match darts before Gurney and Dolan secured a 5-4 win that sets up that meeting with Portugal.

Elsewhere, four-time winners England moved into the last-16 after coming from behind to see off Brazil.

James Wade and Dave Chisnall fell 2-1 behind against Brazilian duo Diogo Portela and Artur Valle before turning things around to win 5-2.

Their opponents in the next round will be South Africa, who advanced as Devon Petersen and Carl Gabriel beat Spain's Jesus Noguera and Jose Justicia 5-4.

Belgium overcame Greece 5-2 and will now face Austria, who were 5-1 victors against the Philippines.

Also on Friday there were wins for hosts Germany and Japan, over Canada (5-3) and Russia (5-1) respectively.