The Ghanian defender has signed a four-and-a-half year contract with Leicester City.
Reports claim Amartey has joined Leicester City for a fee understood to be around £5million.
“It’s a great pleasure to join Leicester City. I know the Club have been interested in signing me for some time and that was a big part of my decision to come here,” he told Leicester’s website.
“All over Europe, people are talking about Leicester City and how well the Club is doing in the Premier League. The team play exciting, attacking football and I’m looking forward to being part of it.”
— Leicester City (@LCFC) January 22, 2016