Salomon Rondon's quickfire hat-trick maintained West Brom's unlikely European charge as he inspired the Baggies to a 3-1 win over Swansea.
The striker netted his first-ever treble for Albion in 13 second-half minutes as the hosts rose to seventh in the Premier League.
Three headers sunk Swansea and Tony Pulis' side have now won four of their last six games and, although Pulis refuses to discuss Europe, it remains a growing possibility.
In contrast, defeat left Bob Bradley's Swansea three points from safety and fellow strugglers Middlesbrough, who they travel to on Saturday.
They have just one point from their last seven league away games despite Wayne Routledge's late consolation.
He fired in with 12 minutes left after Ben Foster saved from Borja Baston.
Foster then prevented a Gareth McAuley own goal with a fine one-handed stop in injury time, but it was too little late for the struggling Swans.
