Luke Moore struck a late winner to give Swansea the perfect homecoming against Newcastle in a 1-0 win at the Liberty Stadium.
Swansea, who have spent the last six days celebrating their Capital One Cup success, looked set to be frustrated after missing a host of excellent chances.
But Moore got his first Barclays Premier League goal of the season from close range five minutes from time as he prodded home, with the help of a deflection off Yohan Cabaye, after Davide Santon had made a mess of clearing a Wayne Routledge cross.
Newcastle spurned chances of their own after having the better of the second half, with Papiss Cisse, Moussa Sissoko and Yoan Gouffran proving particularly wasteful. Michael Laudrup's side had started the match in the manner in which they had dissected Bradford at Wembley last weekend.
A wonderful dribble from Pablo Hernandez ended in a chance for Michu, but Swansea's talisman could only head over. The Spaniard was then allowed to drift around the back from a deep free-kick and his flick past the advancing Rob Elliot left Ashley Williams with a simple finish, but the Wales captain scuffed his effort.
Mathieu Debuchy had a slice of fortune when the ball struck his hand after an aerial challenge with Ben Davies, but referee Craig Pawson, on his Premier League debut, waved away Swansea appeals.
The game became increasingly niggly and Ben Davies was fortunate not to be carded after a late challenge on Jonas Gutierrez. Temperatures rose further as Cheick Tiote and Cabaye were booked in quick succession for fouls on Nathan Dyer.
Swansea were clearly being troubled by Newcastle's direct approach, but they carved the visitors open within seconds of the restart - only for Elliot to superbly deny Angel Rangel from Hernandez's lovely pass.
Cisse, who scored twice in Newcastle's win here last season, wildly volleyed over the bar, before Gouffran made a hash of finishing from Sissoko's pull-back. Michel Vorm tipped a Cabaye shot onto his bar, and the Dutchman was again at full stretch in the 73rd minute to tip a Sissoko drive around the post.
Swansea went close when Hernandez's disguised pass put substitute Ki Sung-yueng one-on-one with Elliot, but the keeper was again equal to the task. However, he had little chance of keeping out the winner as Cabaye's attempted challenge took Moore's strike beyond him and into the corner of the net.