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The 21-year-old was named as Man of the Match in the 1-0 victory in Saint Petersburg, capturing the eye for the second game on the trot after producing a quite breathtaking dribble from his own half.
Impressed by what he saw from the Real Sociedad man, former Spurs and Barcelona striker Lineker took to Twitter to wax lyrical about Isak.
"Don't think there's much doubt that Alexander Isak will attract a lot of attention from clubs across Europe," Lineker wrote.
Isak was asked about Lineker's comments in a post-match press conference and quite clearly had no knowledge of who the Match of the Day presenter was.
"I am not that aware of him. It's an old player working in the studio?" Isak said.
"I wasn't born then but I have a little bit of knowledge about him."
Lineker is indeed a bit before the former Borussia Dortmund man's time but he did score 330 career goals and was the Golden Boot winner at the 1986 World Cup.
Isak has been the main man for Sweden so far in Euro 2020 and looks set to have a slew of clubs queueing up for his signature in the summer.
Fresh reports say Sociedad and Dortmund are in talks to remove his £26 million buy-back clause, with the Spanish side poised to pay a fee of £5 million.
In 2020/21, he hit 17 goals in La Liga and won the competition's Young Player of the Year award.