The Swedish national team player shone in the week's drawn match against Liverpool – and seemed to continue in the same vein away against Brentford.
Isak started by poking the ball to Sean Longstaff, whose shot hit the crossbar, and then scored 1–1 himself after eleven minutes.
Seven minutes later, he should have scored another Premier League goal – instead, it was a major miss.
The 25-year-old got past goalkeeper Mark Flekken and should have only put the ball in the net – but the attacker took too long and Flekken managed to get back and poke the ball away.
The Dutchman's action showed that Brentford would be difficult to defeat.
Via goals from Yoane Wissa, Nathan Collins, and Kevin Schade, the league's strongest home team secured another full win, 4–2.
The reigning champions Manchester City dropped points in the away match against Crystal Palace. Rico Lewis saved a point when he scored 2–2 in the 68th minute. Just over a quarter of an hour later, he was sent off.