The 28-year-old full-back has only made two league appearances this season, the last of which against St. Johnstone in a goalless draw.
This hasn’t stopped Costa Rica from calling Gamboa up to their World Cup Squad to go to Russia.
The Costa Rican says he can’t wait for the World Cup after a worthless season at double Treble winners Celtic.
He said: “The World Cup has come at the ideal moment for me. It’s a relief to be able to play after a very difficult season.
“For me, I’ve done everything I possibly can to get to Russia.
“I need to look at the situation after the World Cup.
“Despite the lack of games, I feel fit and ready and prepared. I think we have a good team and are ready to surprise people at this tournament.
“The first match is going to be very important and I hope I can play in it.”