Alone
If you look closely, you can see that everyone on this team is kissing their loved ones except for this one lonely teammate. But he doesn’t seem too bothered about it, in fact, he doesn’t seem to care at all. The man is confident in himself and doesn’t need a relationship.
Some people are just happier alone we guess or they are not rushing to find that special someone who will complete their life. He won the trophy with his team and that was enough for him, he doesn’t need to celebrate with his romantic partner. We think he wishes that he had one though.