Cameroon goalkeeper Andre Onana left out of team for 'disciplinary reasons' - Rigobert Song

Onuoha sympathetic with Embolo's lack of celebration (1:32)

Nedum Onuoha understands the lack of celebration from Breel Embolo following his winner for Switzerland against Cameroon. (1:32)

AL WAKRAH, Qatar -- Cameroon goalkeeper Andre Onana was left out of the team for their 3-3 draw with Serbia on Monday due to "disciplinary reasons" and his availability for Friday's match against Brazil has yet to be determined, according to coach Rigobert Song.

"For the time being, I've had to wait and we'll see if he's going to stay with us," Song said through an interpreter. "It's up to him as well to a certain extent. So, you're gonna have to agree to respect the rules to perhaps come back into the squad."

- Stream on ESPN+: LaLiga, Bundesliga, more (U.S.)

The Inter Milan goalkeeper was a surprise omission when the team sheet was released before the match given he started in his side's 1-0 loss to Switzerland last week. He was replaced in the starting XI by Devis Epassy, who plays for Abha in Saudi Arabia.

Sources told ESPN on Tuesday that Onana had left the tournament and would not take part anymore after clashing with Song over his preferred style of play.

Onana, according to sources, had been waiting to see if Cameroonian Football Federation (FECAFOOT) president Samuel Eto'o or Song would talk to him about the situation but made his decision after that did not happen.

In a statement posted on social media, the goalkeeper said he had put "all my efforts and energy into finding solutions" but that "there has been no will on the other side."

"I want to express my affection for my country and the national team," Onana said. "Yesterday I was not allowed to be on the ground to help Cameroon, as I always do, to achieve the team's goals. I always behaved in a way to lead the team to success in a good manner.

"I have put all my efforts and energy into finding solutions to a situation that a footballer often experiences, but there has been no will on the other side. Some moments are difficult to assimilate.

"However, I always respect and support the decisions of the people in charge of pursuing the success of our team and country."

Song added on Monday: "I'm responsible and if any decisions have to be taken, I'm fully prepared to do that. What I'm interested in are the players who I do have at my disposal. And in just a few days time, we have a very big match.

"The issue is that Andre has now been left out for disciplinary reasons. In a group, you need to expect the rules [to] apply to everybody. And I prefer to ensure that the teams takes precedent over individuals. I think [I] needed to make that decision and it was something that had to happen. Everyone who did get picked was capable and those who didn't want to be part of that, then that can be judged."

A statement from FECAFOOT general secretary Blaise Djounang on Monday night said Onana had been "temporarily suspended from the group" for "disciplinary reasons."

"The Cameroon Football Federation hereby informs the public that following Mr. Rigobert Song Bahang's decision, head coach of the Indomitable Lions, the player Andre Onana has been temporarily suspended from the group for disciplinary reasons," Djounang said.

"The Cameroon Football Federation reiterates its full support to the head coach and his entire staff as they implement the federation's policy aimed at preserving discipline, solidarity, complementarity and cohesion within the national team.

"FECAFOOT further reaffirms its commitment to create a peaceful atmosphere for the team and to provide them with adequate facilities for an outstanding performance."

Cameroon trailed 3-1 early in the second half before two goals salvaged a point, ending the team's eight-match World Cup losing streak dating back 2002. It was just the 23rd time in 450 World Cup matches that a team came back from a two-goal deficit to get a result.