Everton are monitoring Porto midfielder Yacine Brahimi.
They sent a scout to watch the 28-year-old Algeria international in action during his club’s 3-1 victory over Nacional on Monday night.
And Brahimi enhanced his reputation by scoring twice as Porto moved six points clear at the top of the Portuguese League.
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Brahimi is set to be out of contract at the end of the season, so could be available at a knock-down price.
Born in Paris, the attacking midfielder started his career with Rennes in France before moving to Spanish club Granada in 2013 following a loan spell there the previous season.
He then joined Porto for £5million in the summer of 2014, but 80% of his economic rights were then sold on to a third party, Doyen Sports.
Porto subsequently bought back 30% of the player’s rights a year later.
Brahimi played for France at youth level, but committed himself to Algeria in 2013 when he won the first of his 39 senior caps.