Foxes boss Brendan Rodgers wanted to keep Bassey, but as a player without a first-team appearance or even Wikipedia page, fans of his new club might be forgiven for not knowing much about the 20-year-old.
Is the new arrival of Ibrox a potential diamond, or will it come out of the joint in the near future?
We dove deep into the new Ranger man.
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Who is Calvin Bassey?
Bassey was born in Italy but grew up in London, and is also eligible to play for Nigeria.
He is just under 6 feet tall and has crossed the Leicester youth system.
He was part of a Foxes youth team that led a riot during a development game at Ibrox in September 2017, defeating a young Rangers team 6-1.
Where does he play?
Mainly a left-back, Bassey also appeared in the center-left post for Leicester’s U23, after an injury to former Celtic center-back Filip Benkovic.
He played center in both a back four and a back three.
As a student in action for the U-23s, it seems common that he is often asked to play both positions in one game, sometimes switching back and forth between the two.
He will not play right, he is not afraid that he will.
What kind of player is he?
Positive: Bassey is a strong and physically imposing player who seems confident when attacking air balls.
A problem often encountered with young players moving from development football in England to the hustle and bustle of the FBCL is the difficulty in taking up the physical challenge.
But Bassey seems well equipped to deal with it. Not only is he physically strong, but there is an aggression in his game that should bode well.
There is also a willingness to move forward when playing on the left and occasional lightning bolt work in the last third.
Bassey also seems comfortable picking deep passes, with many examples of defensemen finding teammates in difficult positions rather than just erasing their lines.
But perhaps most importantly, it will provide natural back cover for the first time in the fate of Steven Gerrard as manager.
Borna Barisic emerged as the first choice but was only supported by Andy Halliday – a midfielder – and right foot Jon Flanagan.
Negative: For a side, Bassey does not have a dazzling pace.
Although he played central defender, he did not always seem comfortable, notably missing an interception in a game of under 23 against Southampton to allow the hosts to take the lead.
Another example shows Bassey, as the last man, to get out of control and keep the opponent on target. This suggests a tendency to die out sometimes, which, to be fair, is not uncommon among young players.
There is some apprehension about his center-back play which suggests that he was brought mainly for left use.