Conor McGregor looked a shadow of his former self against Khabib Nurmagomedov at the weekend.
It was inevitable that the 'Notorious' would struggle with his opponent's supreme wrestling ability, but fans had great reason to think his immense striking would win him the fight.
However, the same hand speed and accuracy that cleaned out Jose Aldo and Eddie Alvarez just wasn't apparent at UFC 229 and McGregor laboured in his exchanges with Nurmagomedov.
Fans could even argue that the Russian achieved more on his feet than McGregor, something nobody would have predicted before the first bell.
Although the challenger would later show his boxing skills in the third round, McGregor was knocked down for the first time in his UFC career with an overhand right from Nurmagomedov.
McGregor struggled against Khabib
His coach - John Kavanagh - later revealed how frustrated his fighter was with that fall, noting: “He (Conor) hates technical mistakes.
"So that right hand, you know… he was very disappointed he got caught with a shot like that. It’s one of the hardest clean shots Conor has been caught with in his MMA career.”
In the end, Nurmagomedov secured the victory in the fourth round, forcing McGregor to tap out after choking him with a neck crank against the fence.
Updated UFC rankings
It reasserted the Russian as lightweight champion and cast McGregor's future in the UFC into doubt with many unsure about the prospect of a rematch.
And the permutations of the fight have certainly been felt in the latest UFC pound-for-pound rankings, which go a long way towards summing up the nature of the bout.
McGregor - despite going almost two years without an MMA fight - had remained in second place, but has dramatically tumbled six whole places since the fight.
He was also stripped of his number one challenger status with Tony Ferguson usurping him.
Meanwhile, Nurmagomedov has replaced McGregor in second place, leaping an incredible six places as a sign of his dominance during the match.
Now McGregor - the self-proclaimed 'face of the fight game' - finds himself beneath TJ Dillashaw, Max Holloway, George St-Pierre, Tyron Woodley and Demetrius Johnson.
Whether the 30-year-old likes to admit it or not, only being ranked as the eighth best fighter in the UFC will certainly pack a sting after defeat to Nurmagomedov.
The Irishman was once in the conversation as the greatest ever and has now left himself with plenty to prove back in the octagon.
Only time will whether McGregor decides to focus on mega-money fights or vows to work himself back to the top of the sport that made him.
Who do you think McGregor should fight next? Have your say in the comments section below.