The moves comes in the aftermath of LGB's group stage exit at ESL One Katowice, where many expected the Norwegian team to be the tournament's dark horse.
Despite getting off on the right foot in Poland, with a 16-3 thrashing of PENTA Sports, LGB were still knocked out in the group stage following a 8-16 defeat against EnVyUs and a 12-16 loss against the German side.
Mikail "Maikelele" Bill, who was out of action after being benched by Ninjas in Pyjamas last month, has now been given the chance to return to activity in an organisation he knows from the inside out as he was part of the Swedish LGB squad reached the top eight at DreamHack Winter 2013.
He will step into the shoes of Morten "zEVES" Vollan, whose future remains unclear for the moment.
"I’m happy to announce that I will play as a stand-in (trial) for the organisation I once represented and created," Bill said in a statement.
"LGB eSports is my roots and it will be fun to play for the amazing brand that have been one of the most known names of all names.
"I can’t say anything about the future but I can say that if this works out, I can see a great future with these guys, they have a lot of potential to become a really good team."
Ninjas in Pyjamas have not yet commented on Bill's situation, but a statement from LGB refers to him as a "former NiP player", which could mean that the Swedish AWPer has been released from his contract with the ESL One Katowice runners-up.
LGB eSports, who will attend Copenhagen Games next month, now have:
Ruben "RUBINO" Villarroel
Håvard "rain" Nygaard
Joakim "jkaem" Myrbostad
Pål "Polly" Kammen
Mikail "Maikelele" Bill (stand-in)