Lenglet was dismissed during the first half of his maiden LaLiga appearance for Barca after clashing with Pere Pons, with Girona striker Cristhian Stuani striking twice to turn Sunday's game around at Camp Nou.
In week two, opponents Real Valladolid had a goal ruled out for offside and on Sunday, their defender Lenglet was shown a straight red card in an incident which continues to divided opinion.
Girona midfielder Pons collaborated Valverde's version of events, confirming that he said sorry to Lenglet and admitting he thought he was the player who had committed the foul at first.
The Barcelona captain was furious with Jesus Gil Manzano at the full-time whistle having seen team-mate Clement Lenglet controversially dismissed early in the contest.
The Frenchman won the ball in a 50/50 tackle with Girona attacker Pere Pons, who subsequently received an elbow to the head during the collision.
"The sending-off changed things a lot, we weren't able to come back [and win]".
Busquets accepted there was contact between Lenglet and Pons but disagreed with the eventual decision by referee Jesus Gil Manzano.
"I suppose VAR will do it justice but I have the sensation it wasn't a sending-off; there may have been an impact but I don't think it was aggressive at all". We both went in 100 percent, we both caught each other.
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"Until the red card things were going well for us".
Barca midfielder Sergio Busquets was also perplexed by the verdict, questioning the use of VAR to reach the decision.
"Maybe there is contact, you can see it in the image, but the ball is on the ground".
"VAR needs to be used correctly and with the same criteria", Busquets said. "It's the first sending off where the player fouled apologises".
Tebas has said whoever does end up going to the US will do so voluntarily, and Perez has said that will not be Madrid.
"We tried, we had the draw and we looked for victory".
"It's a different game [with 10], we were good 11 against 11, we could have scored more goals".
Barca went into the weekend two points clear of Real Madrid in the standings but are now locked on 13 points with their arch rivals, who beat Espanyol 1-0 on Saturday.