The Germany international asked his team-mates to try and hit the bar with footballs filled with helium.
It seemed a difficult test initially, but Ozil made it look easy, chipping it onto the corner of the woodwork.
From then on, Ozil, Gabriel, Mathieu Debuchy, Rob Holding, Yaya Sanogo and Jeff Reine-Adelaide all tried it, with mixed success!
Check out the video below.
