Lagos - Chelsea reserve Kenneth Omeruo and Kilmarnock midfielder Reuben Gabriel were drafted into Nigeria's squad on Sunday for the second leg of their World Cup playoff against Ethiopia in Calabar on Nov. 16.
The national federation announced coach Stephen Keshi had kept the 23 players called up for the 2-1 first-leg win in Addis Ababa last month and added the British-based pair.
Super Eagles are strong favourites to qualify for the World Cup for a fifth time.
Omeruo, who returns after a shoulder injury sustained at the Confederations Cup in Brazil in June, was loaned by Chelsea to Dutch club ADO Den Haag last season but is now back with the London team.
The 20-year-old defender played all six matches when Nigeria won the African Nations Cup in South Africa at the start of the year.