Having claimed their second ever Norwegian Cup triumph courtesy of a 3-2 win over Sarpsborg 08 on Sunday, Melgalvis stripped on stage before posing with the trophy over his genitals.
💥 Norveç Kupası finalinde Sarpsborg'u 3-2 yenerek şampiyon olan Lillestrom'un 28 yaşındaki futbolcusu Aleksander Melgalvis, kupa sevincini biraz abarttı... ➤ https://t.co/4muKndvefD pic.twitter.com/m3mhaeKu7X— Sporx (@sporx) December 5, 2017
Norwegian FA comms director Yngve Haavik told TV2: "Winning the Cup is a big thing and obviously it should be celebrated. But it is very possible to do so in a manner that shows the cup a bit more respect.
"I am sure it wasn't intentional from Melgalvis but it came out the wrong way regardless. I think Melgalvis and Lillestrom agree with that."
Quizzed on his behaviour, Melgalvis said: "I've come a long way to play in a cup final. Of course I can understand that [people thought] it was a bit over the top. I'll admit that and apologise, but it is not something I regret."
Lillestrom finished 12th in this year's Eliteserien.