"Years ago I said he could end up being the world number one", said former German goalkeeper Oliver Khan on Akinfeev's abilities as a goalkeeper and captain.
It was a remarkable finale to a game Spain dominated in terms of possession but simply did not do enough to win and Russian Federation can now look forward to a quarter-final next Saturday in Sochi against Croatia or Denmark.
Spain took a 12th-minute lead off a free-kick from an own-goal by Ignashevich, who two weeks before his 39th birthday became the oldest player to suffer such a mishap in a World Cup match.
Russian Federation coach Stanislav Cherchesov believes the World Cup hosts' shock victory over title contenders Spain on penalties following a 1-1 draw in the last 16 on Sunday "is only the beginning".
"We did everything possible", said Spain captain Sergio Ramos, who scored his penalty. They started with a 3-3 draw against Portugal before beating Iran 1-0 and drawing 2-2 with Morocco.
Spain coach Fernando Hierro had said the day before that teams win tournaments by making fewest mistakes.
Yes, upsets are bound to happen in sports but these upsets grab more attention when it comes to the FIFA World Cup.
Iniesta came on after an hour and combined well with other substitute Iago Aspas in the 84th minute but failed to really test Igor Akinfeev. The defeat also marked the end a of glittering worldwide career for Andres Iniesta, who was brought on midway through the second half for his 131st and final Spain appearance.
James agrees to four-year, $154 million deal with Lakers
His management agency, Klutch Sports Group, announced his agreement with the Lakers with a simple, short release. A championship that united generations of Clevelanders, both living and passed.
After 120 minutes of football and with the teams tied 1-1, referee Bjorn Kuipers from the Netherlands whistled for penalties.
Russian Federation can play with five at the back, as against Spain, or a four-man defense, as in the three group-stage games.
World Cup history was made with the first use of a fourth substitute, which Federation Internationale de Football Association now allows teams in extra time.
Russian Federation and Spain are going to the first penalty shootout of the 2018 World Cup.
Forward Artem Dzyuba buried it for his third goal of the tournament, sending Spain keeper David de Gea the wrong way to equalise and awaken the subdued crowd.
After overcoming the Spanish national team and moving to the quarterfinals of the World Cup, "Those fans will now get at least one more chance to cheer", the media writes.
Russian penalty kickers were ideal against Spain's struggling goalkeeper David De Gea. Turmoil erupted two days before the opening game, when the federation fired the head coach.
Sergei Ignashevich, Aleksandr Golovin and Chernyshev all followed suit as Akinfeev saved from Koke.