When used, the left-hand tap is put into a drill hole of a drilled broken bone, and then operated by a left hand to make left-hand internal threads.

Prinz was at the heart of the attack once again as she pulled the ball back from the left hand touchline and Rachel Brown bravely dived at the feet of Kerstin Garefrekes to prevent a simple tap in.

When stroking first with my left hand, from a position tipped onto my right side, I was able to tap only the power in my left arm and shoulder for that first stroke.