Luton Town defender, Gabriel Osho is doubtful for Nigeria’s upcoming friendlies against Ghana and Mali, DAILY POST reports. Osho received his maiden invitation to the Super Eagles for the friendlies on Saturday. The 25-year-old incidentally sustained an injury the same day. The versatile centre-back was subbed off in Luton Town’s 1-1 draw at Crystal Palace after sustaining an injury. He was replaced by Cauley Woodrow seven minutes from time. Manager Rob Edwards said afterwards Osho remains doubtful for the club’s next match against Bournemouth. “Gabe has a nasty knock on his knee, one that had…