Everton's Gylfi Sigurdsson piled the pressure on former manager Paul Clement with a brilliant strike in the 3-1 victory to leave Swansea rooted to the bottom of the Premier League.
The Iceland international, who left the Swans in a £45m summer move, scored Everton's vital second goal after Dominic Calvert-Lewin had cancelled out Leroy Fer's opener by converting Wayne Rooney's saved penalty on the stroke of half-time.
Rooney then made sure of the points with his sixth goal in five games when the hosts were controversially awarded a second spot-kick in the 72nd minute.
It left Clement battling to save his job with 12 points from 18 matches, and more worrying just 10 goals scored, leave the Welsh club four points from safety after just one win and four points from their last 10 league matches.
The opposite is true for Everton, who are upwardly mobile under new manager Sam Allardyce with four wins and a draw from his first five matches in charge, earning 10 out of 12 points to lift his side from relegation contenders to ninth place in less than three weeks.
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