In the final group game between Cameroon and Germany at the FIFA Confederations Cup on Sunday, a wrong player was sent off but later rectified as the Africans crashed out of the tournament in Russia.

Cameroon coach Hugo Broos slammed the decision to send off Ernest Mabouka in Sunday's 3-1 defeat to Germany as the video assistant referee (VAR) system again came under scrutiny at the Confederations Cup.

Timo Werner netted twice as Germany set up a semi-final clash against Mexico, but Cameroon were seething at the dismissal of Mabouka, who was initially spared after a case of mistaken identity.

The video review system was called upon when Mabouka was sent off on 64 minutes for a dangerous tackle as he went in studs up on Liverpool's Emre Can.

Colombian referee Wilmar Roldan showed Sebastien Siani the red card at first, before his error was rectified and Mabouka received his marching orders instead after intervention from the VAR.

The decision left Cameroon reeling and Germany's Werner scored his first goal just a minute after the dismissal.

"The referee didn't give any explanation," fumed Belgian Broos when asked about the bizarre sequence of events.

"First of all he gave a red card against Siani, then the video ref called him back and told him it was the wrong player, so Mabouka was sent off.

"I think both players (Can and Mabouka) had their legs high, so I don't see why he had to give a red card.

"I think everyone is confused, also me, I didn't know what was happening, I didn't understand it and I still don't understand it now.

"I think this is something for the referee, he and he alone can explain what happened in that incident."

After Kerem Demirbay fired Germany in front just after the break, Werner struck either side of Vincent Aboubakar's consolation effort for Cameroon on 78 minutes.

Cameroon bowed out of the competition after two defeats and a draw, while Germany advanced to the last four as Group B winners.

But Germany boss Joachim Loew also questioned whether the red card was necessary.

"I spoke to Emre Can, he said there was contact but didn't feel it was a foul," said Loew.

"I saw the foul, I didn't have the impression that he had the intention of injuring the player.

"I think we need to get used to the video referee, but it has proven useful with regards to offsides.

"Maybe it can be fine-tuned so that decisions are made a bit quicker."