Stale Solbakken's side knew a victory over the Group I struggler would mean only a thumping defeat to Italy in its final game could deny it top spot, but the nerves were palpable at the Ullevaal Stadion as Estonia reached half-time still level at 0-0. 

After Sander Berge spurned an early chance, Norway's best opportunity of the opening period fell to Wolves left-back David Moller Wolfe, but his header off Haaland's knock-down was smothered by Karl Hein before Karol Mets cleared off the line.

The floodgates finally opened five minutes into the second half, with Sorloth nodding Berge's chipped delivery in at the far post.

Just two minutes and 20 seconds later, Sorloth had his brace, stooping to head Julian Ryerson's deep cross into the bottom-right corner.

The home fans knew their team was World Cup-bound at that point, but things got better within four further minutes as Haaland scored with yet another header from a right-wing cross, also delivered by Ryerson.

Haaland had his second of the game when he volleyed home from Moller Wolfe's flick-on, and though Robi Saarma gave Estonia something to cheer when he skipped past Torbjorn Heggem and prodded into the near corner on the break, this was Norway's night.