The 19-year-old forward was being observed by Spurs as he helped his side record a 3-1 aggregate win after extra time against the Croatian outfit.
Portuguese newspaper A Bola say that the Premier League club and German side Bayer Leverkusen sent representatives to watch the Portugal Under-21 international.
Jota has broken into the Benfica first team recently and made his first start of the season against Dinamo Zagreb.
He currently has a release clause around £25 million, but his club are believed to be hoping to increase that to £85 million with a contract renewal.
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