Three players named in All Africa Games squad
Right-winger Mpong and right-back Sefa were members of the team which secured qualification to the finals two months ago.
Mpong scored the second and qualification goal in the 2-0 win over Nigeria’s Dream Team V at the Baba Yara Stadium after a first leg 3-1 defeat.
Left-back Owusu has been handed an opportunity to revive his international career after stint with Major League Soccer side Chivas USA.
They will join 27 other players who will begin preparation in Accra on Monday 1 August for the tournament scheduled for September.