Rocky Bushiri has joined Hibs on a permanent deal from Norwich City.
The 22-year-old has put pen to paper on a three-year contract after an option in his original loan agreement was triggered.
It comes down to a certain number of appearances made while at Easter Road.
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The centre-back becomes Lee Johnson's fourth addition so far this summer.
The Hibs boss told the club website: “Rocky has a lot of attributes to be a successful in his career.
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“He has obvious strengths and it’ll be interesting to see how quickly he can adapt to a new playing style.”
Head of Recruitment Ian Gordon added: “Rocky is just 22, has played over 80 senior matches, and has a lot of room for improvement.
"We believe we can add value to him that’ll benefit the club in the future.”