Morocco's midfielder Amine Harit (L) and Morocco's midfielder Hakim Ziyech take part in a training session at Saint Petersburg Stadium on June 14, 2018, ahead of the Russian Federation 2018 World Cup football game Iran vs Morocco.
"Sometimes you win, sometimes you lose", said Iranian football player Reza Ghoochannejhad on social media.
The billboard was quickly replaced with a new design that included women lined up alongside the Iranian team, which is nicknamed Team Melli.
Pacific Time at Saint Petersburg Stadium in Saint Petersburg, Russia.
Jahanbakhsh hailed the manner in which IR Iran secured the win, with Carlos Queiroz's side putting on the kind of solid defensive display against the Moroccans that typified the team's approach throughout Asia's qualifying campaign.
"We also got chances to score a goal and fortunately in the last minutes of added time they scored an own goal".
Sportswear giant Nike has been branded a "disgrace" with angry fans calling for a boycott of the company because of its treatment of Iran's World Cup squad. It revived memories of the vuvuzelas that were the soundtrack of the World Cup in South Africa.
Within minutes, Tehranis had poured out on to the streets as if they had won the entire tournament.
By midnight, pounding music and fireworks could be heard across the city and the whooping showed no sign of letting up.
Among the national teams playing in the World Cup in Russia, Iran is the only country that bans women from watching certain men's sports games, including football and volleyball, in stadiums.
"US sanctions mean that, as a USA company, Nike can not supply shoes to players in the Iranian National team at this time", a statement from Nike read. The slogan on the billboard read "Together we are champions: one nation, one heartbeat".
"We don't have camps, we have problems".