For most of the opening period Liverpool struggled to get out of their own half. The late blow to Florian Wirtz certainly didn't help as Liverpool's rotten injury luck continued but the absence of one player should not have such a seismic impact.
In came Curtis Jones for Wirtz, with Dominik Szoboszlai starting at right-back but it took just half an hour for Arne Slot to switch the pair around. Liverpool have had their struggles this season and this display was among the worst.
"In your head, Arne, Arne Arne" was the chant from the Forest fans in reference to Slot's failure to beat Forest before today but by full time, that was the chant from the travelling supporters after their side pulled off a heist.
Liverpool have hardly been short of late drama this season, conceding four winners after the 90th minute and Alexis Mac Allister's goal wasn't even their latest goal of the season. Rio Ngumoha's 100th-minute winner at Newcastle holds that record.
And Ngumoha deserves credit in this win after he was introduced for Mohamed Salah, who now hasn't scored in his past nine Premier League games.
Ngumoha looked lively and probed down the right, putting in the dangerous cross that eventually led to Mac Allister's disallowed goal.