Fernando Llorente returned to haunt former club Swansea and Dele Alli struck late on as Tottenham claimed a fifth win in six Premier League games on a rainy night in south Wales.
Llorente struck a controversial 12th-minute goal - his first in the Premier League for Spurs, after Harry Kane had been named on the bench following a seasonal heavy cold - before Alli clinched matters in the final minute for a 2-0 victory.
Television pictures clearly showed Llorente standing in an offside position when he met Christian Eriksen's free-kick.
Bottom-placed Swansea could also take issue with referee Bobby Madley's decision to allow Davinson Sanchez to stay on the field after 55 minutes.
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