Portugal head coach Simon Mannix admitted his side must be better than they showed in shipping nine tries to Scotland on Saturday. 

Former New Zealand cap Mannix succeeded Patrice Lagisquet as Portugal head coach after the Frenchman guided Os Lobos to an historic World Cup win over Fiji and a draw with Georgia last year. 

And Mannix, whose side prepared for the trip to Murrayfield with a defeat to USA at home last weekend, admitted they must be better. 

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"I felt we were better than 59-21," Mannix said, before hitting out at some of the decisions that went against his side from referee Takehito Namekawa. 

"The neck roll against the captain is the one that worries me. You've got TMOs and bunkers and whatever else you've got and they didn't see it, but the reality is when you are struggling on the scoreboard, we're not going to get anything. 

"We've got to be better not to be relying on this stuff to be picked up, but they should be at this level. 

"It is difficult for the referee too, but I thought Luke Pearce tried to help him with one [when Darcy Graham was penalised for a deliberate knock-on] but that's the way it goes. We've got to be better."

Mannix believes his side will have learned a lot from playing in front of more than 60,000 fans at Murrayfield. 

"We cannot be a team that is judged on one World Cup," he said. 

"We've got to be more consistent and we've got to be able to front up better than we did today. 

"We had a trip to Bloemfontein in the summer which was an incredible experience, and today as well, and we have to earn these opportunities to play in these types of stadiums by being better than we were today. 

"We know we can be better than the 59 points we conceded today. Hopefully those opportunities will be afforded to us."