The Super Eagles' full squad has now assembled at their camp in Kigali, with the arrival of Major League Soccer star Alhassan Yusuf completing the puzzle.
The New England Revolution midfielder joined the team at the Radisson Blu Hotel on Wednesday morning.
Yusuf missed the team's first training session on Tuesday but is expected to participate in the second session on Wednesday evening.
Tuesday's training session was the first led by Malian head coach Eric Chelle.
Nigeria is set to face Rwanda on Friday, March 21, at the Stade Amahoro before returning home to take on Zimbabwe at the Godswill Akpabio Stadium in their subsequent match.
WDN