Super Eagles midfielder, Mikel Obi is a major doubt for the round of 16 of the Africa Cup of Nations.
The team's technical adviser, Gernot Rohr confirmed this on Tuesday morning ahead of Nigeria's ‘maybe' clash against perennial rivals, Ghana.
Mikel copped the injury in the team's 2-0 lose against Madagascar on Sunday, a situation which led to him been replaced in the second half.
Recall that the former Chelsea and Middlesbrough star recently signed a two-year deal with Trabzonspor and is expected to join other Super Eagles players such as Ogenyi Onazi, Anthony Nwaekeme and Henry Onyekuru if Everton loan him back to Galatasaray.
