England and South Africa both won sudden-death legs to win through to the quarter-finals of the Cash Converters World Cup of Darts in Hamburg.
The English pair of Phil Taylor and Adrian Lewis made amends for their defeats to Ken MacNeil and John Part respectively in Friday night's singles games with a 5-3 win over Canada in their doubles contest.
That meant the tie was drawn 2-2 to force a sudden-death leg, which Lewis won on double four to put England into the last eight.
"It was a difficult game and we're relieved to be through after what happened on Friday night," said Lewis. "I probably felt a bit more pressure putting the England shirt on but I'm loving it."
Taylor said: "Last night was disappointing but we're trying our socks off and really want to win this title, as do everyone else in the last eight."
The South African pairing of Devon Petersen and Shawn Hogan performed brilliantly to overturn a 2-0 deficit in their tie with Scotland and a 3-1 scoreline during the doubles contest with Gary Anderson and Peter Wright.
Inspired by three 180s and a 101 finish from Petersen, the South Africans won four successive legs to take a 5-3 win in the doubles game before winning the sudden-death leg, in which Anderson missed two match darts.
Netherlands, the reigning champions, took a 5-2 win over Austria in their decisive doubles game as Raymond van Barneveld and Vincent van der Voort progressed to play Northern Ireland in the quarter-finals.
The Northern Irish pair of Brendan Dolan and Michael Mansell went all the way to a deciding leg in their doubles game with Denmark before left-hander Mansell landed double 10 to put them through.
Australia will play Belgium in another tasty last-eight tie after they enjoyed success in the doubles games.
Simon Whitlock and Paul Nicholson defeated Irish pair Mick McGowan and William O'Connor 5-2 to take a 4-0 whitewash from their tie, while Belgium's Kim Huybrechts and Kurt Van De Rijck defeated Sweden's Magnus Caris and Dennis Nilsson 5-2 to take a 3-1 victory.
The quarter-final is given added spice as the singles games will feature Nicholson playing Huybrechts, who knocked him out of the World Championship five weeks ago.
Wales also impressed as the pairing of Mark Webster and Richie Burnett came from 1-0 down to defeat Croatia 5-1, claiming the tie 4-0.
There was disappointment on Saturday afternoon, though, for hosts Germany, who lost their decisive doubles game with the USA 5-4 in a dramatic finale.
The German duo of Bernd Roith and an inspired Jyhan Artut, the Germans took a 4-3 lead only for Artut to miss two darts for the match in leg eight and to then fail to give himself a dart at a double when needing 64 in the decider, and Darin Young powered in a 106 checkout to give the USA a clash with England.
The quarter-finals on Saturday evening sees the top-ranked player face his opposing nation's second-ranked player in singles matches before a doubles game decides the contest, with all games the best of seven legs.