LaLiga clubs Villarreal and Getafe categorically denied any wrongdoing after reports in Spain suggested a game between the teams was part of a match-fixing investigation.
Getafe and Villarreal drew 2-2 at Coliseum Alfonso Perez on 19 May, 2019 (AEST).
It was the final match of the league season for both sides, one which Getafe needed to win to stand any chance of earning UEFA Champions League qualification.
El Pais reported the contest was being scrutinised by police as part of Operation Oikos, which is probing an alleged match-fixing group that was profiting from betting on games.
Getafe also said it would consider legal action and staunchly defended its veteran striker Molina, who was named in media reports.
In addition, some of the club's players tweeted their support for him before Molina denied any wrongdoing.
"Regarding the news that has been published about me, I want to say that I have no relationship, knowledge or implication," he wrote on Instagram.
"It is in the hands of my lawyers and they will take the appropriate legal measures."
Both teams released firm statements on Saturday (AEST).
"Villarreal CF and its first team absolutely reject the accusations made in recent hours," read the release from the Yellow Submarine.
"Both Villarreal CF and its first team want to underline that they absolutely reject the accusations made in recent hours and want to publicly deny in a categoric and emphatic way the alleged involvement in match fixing during the match against Getafe.
"As previously expressed repeatedly, the club condemns this type of action which harms the essence of sport and competition, and stands by its principles of transparency, ethics, integrity and fair play as fundamental values within the entity's philosophy.
"Villarreal CF will study and weigh up the possibility of taking legal action against this situation."
Getafe offered "its unconditional support" to Molina and "regrets the serious violation of his fundamental right to the presumption of innocence".
The statement added: "We want to spread a message of rejection and categorically deny any implication related to this matter.
"Getafe CF publicly condemns this type of conduct and will not tolerate its reputation being tarnished, nor will its integrity be doubted."