Peruvian striker Jefferson Farfan suffered a head injury during a training session and was admitted to a clinic in Moscow where he spent the night, but the tests he has undergone are "favourable", the Peruvian Football Federation (FPF) said.

"Our national player Jefferson Farfan (collided) with a goalkeeper. He suffered a traumatic brain injury," the FPF statement said on Saturday. The player hit one of the Peruvian team's goalkeepers and was knocked unconscious during Saturday morning training at the Khimki Stadium in the Russian capital, the Peruvian team's usual venue since the start of the World Cup in Russia, reports Efe.