Costa, who scored twice in a 3-3 opening draw with Portugal in Sochi, courted controversy early in the Group B encounter when he stepped on the toes of Iran 'keeper Ali Beiranvand.
Then, the notoriously clean-shaven Ronaldo doubled down on his claim by growing out his actual goatee ahead of Portugal's second match at the World Cup, taking his troll of Messi to a new level.
Such an event has never happened previously at the World Cup, and it would likely present something of a headache to Gianni Infantino and friends.
Morocco, who last week failed in their bid to host the 2026 World Cup - a fifth unsuccessful attempt at hosting the tournament - are also the first team to be eliminated from the 2018 competition.
But Portugal survived two Morocco penalty appeals and the north Africans created a number of chances, notably a Younes Belhanda header that was superbly kept out by Rui Patricio.
Canada Passes Bill To Legalize Recreational Marijuana Use
Senators stressed that the government is taking a very cautious, prudent approach to this historic change. Canada's federal government started the arduous journey to legalization in April 2017.
Morocco, who had a real go at the Luzhniki Stadium but failed to convert their chances, are pointless having also lost 1-0 to Iran and can not progress to the second round.
The veteran forward notched his third goal in two games when Ramin Rezaeian's attempted clearance bounced off the Spaniard's leg and into the net in the 54th minute.
Iran thought they had equalised in the 62nd minute when Ezatolahi bundled the ball home from a free-kick.
The goal was allowed on the pitch, but after further review from the Video Assisted Referee, it was deemed to be offside. "It means that you are satisfied", he said.
Iran didn't score, but they did do this...
China says will 'fight back firmly' if U.S. publishes additional tariffs
Anglo-Swiss multinational Glencore is down 2.6 percent, while British technology firm Micro Focus also shed almost three percent. That would leave about $120 billion of imports available for retaliatory tariffs after Saturday's announcement.
Portugal will take on Iran on Monday in their final game of Group B - with them expected to storm to the quarters.
Uruguay picked up their second win of the group stages with a narrow 1-0 win over Saudi Arabia.
The win puts Uruguay in a first-place tie with Russian Federation atop Group A. Both Saudi Arabia and Egypt, two countries searching for their first positive result, have been eliminated from the next round.
Here's looking at the records which Ronaldo is yet to break.
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Following the episode, Modern Family cocreator Steve Levitan voiced his disdain with the company. It started with a Seth MacFarlane tweet condemning 20th Century Fox and Fox News.