Daniel Ricciardo suffered the ultimate humiliation of being lapped by his teammate on Sunday to complete his nightmare weekend at the Monaco Grand Prix.
Max Verstappen crossed the line 8.9 seconds ahead of Ferrari's Carlos Sainz to win the race, with Lando Norris claiming the third podium of his career following another fine drive to finish third.
But Norris's Aussie teammate Ricciardo endured another tough afternoon, coming home way back in 12th.
The Australian driver's humiliation was complete when he was forced to move over and let Norris lap him late in the race.
“I have a tear in my eye here for Daniel Ricciardo,” Sky Sports commentator Martin Brundle said.
“That’s an ouch moment isn’t it. It hurts for Daniel Ricciardo.”
Fellow commentator David Croft said: “This livery looks great and McLaren were hoping to see two cars on the track together on the streets of Monaco, but not like this. Norris laps Ricciardo.”
Paul di Resta said Ricciardo would probably be feeling lower than low.
“This is going to be the most painful night he’s ever going to have in his Formula One career,” di Resta said.
“Forget that win that was taken away from him here with the pit stop (in 2016), this one to be lapped.
“All to do with qualifying, all to do with where you are in terms of position, his speed wasn’t bad at times during this Grand Prix, but he is not gelling with this car yet.
"He needs to change technique. I wouldn’t be surprised if he’s working a few more days in that simulator trying to master it.”
Daniel Ricciardo to move past disastrous weekend
Speaking after the race, Ricciardo said he was already working to put the weekend in his rear-view mirror.
“I think the whole weekend was simply just a weekend to forget, for me personally,” Ricciardo said.
“Obviously car 4 (Norris) and the rest of the team got a podium and I obviously want to congratulate them and they got it right.
“I don’t even know if we got it wrong, we just never got going. We didn’t really do a crazy different set-up, the cars are, I want to say, nearly identical from a set-up point of view, I’m not really trying to be too clever with that either, I’ve got more to learn with this car than Lando does, so I’m not trying to be too different. Trying to follow suit and move forward but just a strange weekend really from the get-go and one to forget.
“I’m probably not going to over-analyse this one, just move forward for Baku and go from there.”
Ricciardo said he would look to fix a few issues before the Azerbaijain Grand Prix.
“This year there have certainly been those races where I’ve got to find a bit more but it will come, but this weekend was more of an anomaly,” he said.
“Such a big difference and getting lapped - it might be the first time - I don’t really know what to say.
“I’ll definitely look into it, but I think when it’s a weekend like this and it was as far off as I was, probably best to step away for a few days.”
Verstappen's triumph on the streets of Monte Carlo took him to the summit of the Formula One standings for the first time in his career after Lewis Hamilton, hampered by a poor Mercedes strategy call, finished a lacklustre seventh.
Verstappen's path to glory was effectively sealed when Charles Leclerc retired from the race before it had started.
Ferrari elected not to change the Monegasque's gearbox following his crash in the closing seconds of qualifying on Saturday.
The decision ensured Leclerc escaped a five-place grid penalty, but it backfired after he reported problems immediately upon leaving his garage.
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