Swedish midfielder Mervan Celik will undergo a medical at Rangers on Friday ahead of his proposed move to Ibrox, the club have confirmed.
Rangers said the 21-year-old would visit the city for fitness tests before any deal was finalised, after his agent claimed he had agreed a three-year contract.
The player is available under freedom of contract following the end of his deal with GAIS, although the Swedish club would be due compensation.
The Sweden Under-21 international can play in midfield, on either wing or up front.
His agent, Hasan Cetinkaya, had told stv.tv earlier on Thursday: "We have agreed a deal in principle with Rangers and we have agreed all conditions. It is a three-and-a-half-year contract.
"We have had a lot of offers for Mervan, 12-13 concrete offers from clubs from big leagues.
"But when Mervan and I went to Glasgow one month ago, we got a very good impression from Rangers and (manager) Ally McCoist. McCoist was the key reason to this transfer."