Kalinic failed to figure in Croatia's World Cup campaign, which ended when they were beat 4-2 by France in the final. He was offered a second-place medal but told Sportske Novosti (h/t Independent), "Thanks for the medal, but I did not play in Russia."
The 30-year-old was believed to have feigned a back injury when asked to come off the bench against Nigeria and was sent home by manager Zlatko Dalic shortly after.
CBSSports.com writer Roger Gonzalez highlighted the regret Kalinic might feel after missing out on Croatia's best World Cup campaign:
Roger Gonzalez @RGonzalezCBS
ATTENTION: I want you to meet Nikola Kalinic. He came to the World Cup as part of Croatia's squad. He's a talented striker. He reportedly refused to come in as a sub in the group stage win over Nigeria. He was then sent home as a result. Don't be like Nikola Kalinic. https://t.co/cr8lT4yRRy
Croatia's runners-up finish was one better than the third place they achieved at France 1998. They won their group over Argentina and beat Denmark, hosts Russia and England in the knockout stages on the way to their first final.
The Croatia medical staff reportedly didn't agree with Kalinic's self-diagnosis of a back complaint, and they and the coaching staff believed he was lying. Kalinic was sent home the day after, and Dalic said:
"During the Nigeria encounter, Kalinic was warming up and was supposed to come on in the second half.
"However, he then stated that he wasn't ready to come on due to a back issue. The same thing happened during the Brazil friendly in England, as well as before the practice session on Sunday.
"I have calmly accepted that, and since I need my players fit and ready to play, I have made this decision."
If Kalinic was faking his knock, he at least appears to have come to terms with his own contribution to missing out on a piece of national history, though he'll have to live with any regret he may harbour:
The veteran striker will be 34 by the time the 2022 World Cup in Qatar rolls around, giving him little chance of making Croatia's cut, although his chances will be even slimmer if Dalic remains in charge in four years' time.