Romelu Lukaku scored twice, and Dries Mertens and Michy Batshuayi grabbed a goal each as Belgium breezed past their Central American opponents on Monday night.
Speaking after the game, Ramirez claimed he didn’t know the forward who grabbed the assist for Mertens’ opener in the 31st minute.
He told reporters: “The 10 did us a lot of damage… I don’t know his name.”
Costa Rica’s group opener is against Serbia on June 17, but the 53-year-old claims to have a plan for his side’s first game in Russia.
Hazard limped off in the 70th minute with a dead leg, but head coach Roberto Martinez insists it’s only a minor knock.
“Eden is OK; he had a little trouble, but it’s nothing to worry about,” he said.
“I really enjoyed his performance. He was sharp and strong, he was majestic. At the end he just came off because he had a little bit of a dead leg; a little bit of a knock on his leg.”
Chelsea seek manager solution with Sarri still leading candidate
Chelsea are hoping to take further steps towards resolving their managerial situation this week, with sources in Italy suggesting Maurizio Sarri remains a strong contender for the role.
Antonio Conte remains in place but is widely expected to depart this summer. The Italian’s contract states that he must receive around £9.5million in compensation if he is dismissed a year before his deal expires.
Sarri, who is still under contract at Napoli, even though the Italian club appointed Carlo Ancelotti last month, is believed to have held talks with the Blues in May and would be keen to take the reins at Stamford Bridge.
During initial talks, Sarri and Chelsea were thought to have discussed a two- or three-year deal. Sarri could have been bought out of his Napoli deal had the Blues paid the £7m release clause, but that option expired at the end of last month.
Laurent Blanc is also thought to have attracted interest from Chelsea, while Standard Sport revealed that Fulham manager Slavisa Jokanovic is also admired.
The Serbian drew numerous plaudits last season, not only for leading his club to promotion to the Premier League, but for developing a playing style that was as entertaining as it was effective.
Understandably, Fulham are keen to agree a new contract with the 49-year-old before the start of the new campaign but this deal has yet to be finalised, with the former Chelsea player increasingly becoming a man in demand.