Neil Lennon was left furious with Viljami Sinisalo after the Celtic goalkeeper almost gifted Benfica a fourth goal in Lisbon.

Celtic were already 3-0 down at the time after a dreadful first half at the Estádio da Luz, with Jhon Durán scoring twice for the hosts and Alexander Bah also finding the net.

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Benfica would eventually get their fourth, but Lennon’s frustration was aimed at how close Celtic came to gifting it to them long before then.

But just as Celtic were trying to get some control back into the match, Sinisalo played a loose pass straight into danger.

The Celtic goalkeeper looked for Camilo Durán through the middle, but the ball was never really on.

The striker dragged his effort wide, letting Celtic off the hook.

Lennon, commentating on TNT Sports, did not hold back.

He said: “What are you doing? What are you doing?

“That’s unacceptable.

“It’s a straight ball into midfield. I know he’s looking for (Camilo) Durán to come, and there’s (Camilo) Durán making the run.

“But he’s never getting there, and he’s so fortunate not to be 4-0 down. (Jhon) Durán sort of scuffs his shot.

“He’s on a hat-trick, but that’s all self-inflicted from a Celtic point of view.

“It’s unacceptable.”

Sinisalo had made saves in the game, but this was the sort of pass Celtic could not afford at 3-0 down.

The ball into Camilo Durán was too hopeful, Benfica read it, and Jhon Durán was suddenly in with a chance to finish the match completely.

That was the part Lennon could not accept.

Celtic had already gifted Benfica an early penalty, left Alexander Bah free at the back post, and then lost the ball before the third goal.

This was another self-inflicted scare.

Camilo Durán later pulled one back, but Vangelis Pavlidis added Benfica’s fourth near the end.

O’Neill can point to a better second half, and there was more threat once Haissem Hassan and Callum Osmand came on.