"I have heard that he had not been named in the final World Cup squad. I know that he is very upset. I have not talked to him yet, but we need to respect the coach's decision, despite this disappointment," Kaldirim told journalists.

The 28-year-old added that he believed that Russia were a better team than Turkey at present.

"A lack of concentration lets us down and we sometimes miss balls in the dying minutes. I hope we will be able to eliminate these sorts of mistakes in the future,” he said.

Russia will play Turkey at the 30,000-seater VEB Arena in Moscow in their final warm-up match ahead of the World Cup on Tuesday.

The competition will be held in Russia from June 14 to July 15 with the games set to take place in 11 cities across the country.