A Thomas Muller hat-trick put a significant dent in Portugal's hopes of qualifying out of Group G in Brazil, with Bento's men forced to battle for over a half with 10 men after Pepe's brain snap.
Pepe head-butted Muller with eight minutes to play in the first half, and saw straight red for the incident, with Portugal trailing 2-0 at the time.
"We didn't shame our country, that's too strong. What we tried simply didn't come off and everything that could've gone wrong did go wrong," he said.
"We always try to honour the crest on our chest, we'll do it this World Cup, until the last drop of sweat."
"The ref had influence but that can't be an excuse. We discussed what happened against Germany to make sure it doesn't happen again," he said.
"I've a lot of belief in this Portugal squad. I believe in our togetherness and spirit. We have a big soul and more than ever have to show it," he said.
