The result was unwelcome ahead of Valencia's Copa del Rey final appearance.
Bordalas said, "The team started well. The first few minutes were good, but we faded. Osasuna prevailed on the second balls.
"We needed to circulate the ball faster. The team grew as the game went on. In the second half, we conceded the penalty that made it 0-1.
"Before that, there was a penalty that was incomprehensibly not called. It seems that VAR does not work in favour of Valencia CF.
"It happened to us in Bilbao, in Vallecas and today we had another very clear penalty. There was a possible second card for Lucas Torró that wasn't shown either.
"Today there were nine fouls by us, and 25 by the opponents; I remind you of this so that later we are not accused of anything. When it happens the other way around, people talk about 'the other football' or 'Bordalás' teams'. This is football.
"From when it was 0-1 onwards, the team kept trying and we found ourselves 0-2 down off a shot by Budimir that was avoidable, just like the first. The second goal hurt us. We kept trying and pulled a goal back.
"There were players who were hanging on in terms of fitness at the end. We haven't got time for regret. We are a week away from a big event and we have to focus on Tuesday's game -and especially Saturday's."
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