Kelechi Iheanacho, a forward for the Super Eagles, joined Celtic as a free agent.
Three teams were vying for the 28-year-old’s services, including the Scottish champions.
On the day of the transfer deadline, Iheanacho’s Sevilla contract was mutually ended.
Now, he has signed a one-year contract with Celtic.
Iheanacho, who he collaborated with at Leicester City, “will make a big contribution,” according to Celtic manager Brendan Rodgers.
Adam Idah, who joined Swansea City for an undisclosed fee, is replaced by the Nigerian.
Iheanacho spent the conclusion of the season on loan with an English Championship team after moving to Sevilla last summer. The Middlesbrough