The winger has been outstanding for O'Neill since his appointment.
He said: "Sess has been a delight to work with since I arrived and he's had a tremendous impact on the pitch, he's been a real gem.
"Off the pitch, he's very quiet. His English is better than my French but to help, I've dug out the dictionary from my old French O-level.
"I check a couple of words before writing them down to show him. One said 'you have not paid your fine!'"