Gnabry is one of the excess player Arsenal sold for cheap.
Gnabry left Arsenal after failing to impress the former legendary coach Arse Wenger.
But went on to build up him self and become a world class player at Bayern.
Yet he prove himself by scoring seven goals in his last eight Champions league appearances, leaving the gunners fans devastated.
This is could be one of the great error Wenger made as Arsenal head coach.
He could went on to win the Champions league ahead of Arse Wenger.
Should Arsenal opt in to sign him back?