Wouldn't be surprised if this was mentioned previously but apparently Daniel Armartey hasn't played competitively for over 2 years according to what I could find out. Without being privy to any physical issues it's possible he simply earned enough being overpaid by us to take early retirement, but I find it interesting how some players differ in that regard. A David Luiz probably doesn't need to to still be playing in the Cypriot league at nearly 40 but obviously still has the desire to play, while others are the complete opposite.
I'd still take him over Okoli even after a 2 year break!