The Super Eagles received a big surprise on Wednesday as central defender, Kenneth Omeruo, returned to training following an injury he sustained in the Africa Cup of Nations Group D opening 1-0 win over Egypt on Tuesday.
He went down unchallenged in the 79th minute, before he was later stretchered off after medical assistance. He was replaced with a Semi Ajayi.
Omeruo made his debut at the AFCON in 2013, when Nigeria lifted the title for the third time in South Africa.
After appearing 55 times for the eagles, he only scored once, Omeruo initially had a separate session with the physiotherapist before rejoining the group and completing the training session.
The Leganes defender was a major doubt for the Eagles second group game against Sudan on Saturday.
Omeruo partnered William Troost-Ekong in the Eagles defence as Nigeria comfortably beat seven-time champions Egypt at the Stade Roumde Adjia stadium in Garuoa on Tuesday.