Russia midfielder Alan Dzagoev said on Thursday that teammate Sergei Ignashevich deserved a "thank you" for playing at the World Cup at the age of 38.
CSKA Moscow veteran Ignashevich, who will turn 39 on 14 July, is Russia's most capped player and played all 120 minutes in his 126th match for the team as they beat Spain on penalties in the round of 16 on Monday morning.
"Ignashevich in playing at the age of 38 at such a big tournament. We should all thank him! He has been working as a professional throughout his career, so it is his achievement that he is still playing at the age of 38," Dzagoev said.
Russia have reached their first-ever World Cup quarter-finals since the break-up of the Soviet Union and will face Croatia at the Fisht Stadium in Sochi on Sunday.