According to The Scottish Sun, Morelos has competed his medical at Rangers and has agreed terms on a three-year contract.
Valakari, who is 44 years of age, had to deal with Morelos as manager of SJK during games against HJK, and he has spoken highly of the Colombian striker.
“Alfredo can become the player he wants,” Valakari told The Scottish Sun. “He has aspirations to play in England and, of course, for his country. I’ve no doubts he can realise this dream.
“He will need good coaching and a good environment. Because of the way they are trying to build something special, Rangers will provide him with both.
“This move will help him and, if he stays fit, then I see him playing for his country and one day in the Premier League.”
Rangers finished third in the Scottish Premiership this past season and will be aiming to close the gap on Celtic during the 2017-18 campaign.
The Gers are unlikely to challenge Old Firm rivals Celtic for the Scottish Premiership title, but the Glasgow giants should be determined to end up second.
Pedro Caixinha is a good manager, and if the Rangers boss gets to make the signings that he wants to, then the Ibrox faithful should be optimistic of a successful 2017-18 campaign.