Russia goalkeeper Igor Akinfeev was "blinded" by a laser before the goal that eliminated his side from the World Cup, according to coach Fabio Capello.
Television footage showed a green laser pointed at Akinfeev's face seconds before Islam Slimani scored Algeria's equaliser in a 1-1 draw.
Capello, whose side needed to win to reach the last 16, said: "The goalkeeper was unable to do his job.
"The laser was in his face. It is not an excuse. You can see in the footage."
|Fabio Capello's World Cup record|
|England (2010): 1-1 v USA; 0-0 v Algeria; 1-0 v Slovenia; 1-4 v Germany|
|Russia (2014): 1-1 v South Korea; 0-1 v Belgium; 1-1 v Algeria|
Russia took a sixth-minute lead through Aleksandr Kokorin, but Slimani headed in from Yacine Brahimi's 60th-minute free-kick as Algeria qualified for the last 16 for the first time.
Capello, who confronted the officials at the end of the match, has now only won one of his seven games at two World Cups.
The 68-year-old took England into the second phase, where they lost 4-1 to Germany in South Africa in 2010, but drew twice and lost once as Russia failed to make it out of their group in Brazil.
Russia hosts the next World Cup and the Italian, who agreed a contract extension to 2018 earlier this year, has no plans to resign.
Asked whether he would stay in charge, Capello replied: "If they still want me, yes."