MIKAEL Lustig rubbed salt into Rangers’ wounds last night by claiming Celtic could have scored 10 at Ibrox, such was their dominance in the final Old Firm match of the season.

The champions scored five in a terribly one-sided 90 minutes which saw them record 17 shots on goal.

Lustig summed up his side’s afternoon by scoring a late solo goal of his own to seal the 5-1 victory, and the Swede believed that it could have been even better for a team which has now gone 42 domestic games without defeat.

The Celtic right-back said: “We scored five goals but if we had been 100 per cent clinical it could have been closer to double figures. I think it was the most satisfying performance of the season in domestic terms.

“It’s up there with the 5-1 win at Parkhead as well. The way we played on Saturday, the way we kept the ball and created chances, the way we defended, it all felt good.”

Celtic are clearly on another planet compared to their city rivals and while the boast of double figures may have been over the top, Lustig was right to say his team should have scored more.

“It was quite special,” he said. “First of all the way we played was quite brilliant. I don’t know if this proves the gap is getting bigger. There were two teams out there but let’s just talk about our performance, which was brilliant.

“They tried something new and still couldn’t touch us. They tried a different style of play from last week but we proved that we are too good at the moment.

“The way we played for that full game was very pleasing. Were they more physical? I don’t know. If you lose a game and have a chance one week later you try to do different things. We thought they might come for us in the first half. Of course when we get two goals quite early it’s hard for them.”

Lustig’s goal will stay with him for some time and he insisted it should not have come as such a surprise: “If I’m honest I don’t do it all the time,” he said.

“I’ve had a different role this season. I’ve not been able to be that offensive but obviously it’s easier when you are 4-1 up. I won the ball, saw Scott Sinclair on the left and James Forrest on the right.

“They were trying to get the ball but sometimes you need to do it on your own.”

“We work hard on the same things every week and don’t take anything for granted. If we keep doing that then we know it will be a fantastic end to the season. But, there is still four weeks to go and we will not be taking our foot off the gas.”