As the end of boxing's unofficial season approached, he found himself back where his professional career started in a far less high-profile contest.
Across the ring stood Simas Volosinas of Lithuania, a man who had won seven of 68 fights and only once triumphed in his last 41 bouts.
Plenty of credit must go to McDonnell for pushing for a fight when he could easily have sat at home and awaited his next opportunity in the upper levels of the super bantamweight division.
But this is a fighter determined to keep busy and remain in the best possible shape for whatever his storied career delivers next.

McDonnell needed a workout and that is exactly what he got. Volosinas was planted in the middle of the ring which allowed McDonnell to dance around him and unleash shots.