Alexander Isak looked out of position but somehow managed to slow the pace, get his leg up and tap the cross from Joe Willock.
The volley was not very clean, but with the shin guard, the 23-year-old got the ball in via the post behind goalkeeper Keylor Navas.
The first-half stoppage time goal leveled Newcastle at 1–1, and at the end of the away meeting with Nottingham he settled by making it 2–1 on penalties.
The Swede has thus scored six goals in ten Premier League matches – three in two matches when he also found the target against Wolverhampton – since he left Real Sociedad for Newcastle last summer.
For the Swedish national team management, Alexander Isak’s goalscoring form will be a gratifying message, as next week Sweden steps into the qualifiers for the European Championship finals in Germany 2024.
For Blågult, Belgium awaits on March 24 and three days later, national team captain Janne Andersson & Co face Azerbaijan. Both qualifying matches are played at Friends arena.