In case anyone doubts just what a dominant force Ronnie O'Sullivan is at the moment, here are some stats...
He has appeared in five of the last seven ranking tournament finals, winning three and finishing runner-up in two.
Last season he compiled 50 century breaks. His closest challenger on this list was Marco Fu with 30.
During last season O'Sullivan constructed 204 breaks of 50 or more. Second on the list was Shaun Murphy with 128.
This sort of relentless heavy scoring of which O'Sullivan and Stephen Hendry (in his prime) have been the two leading exponents guarantees a certain level of success.
What is also required is a resolute temperament.
Hendry certainly had that when he dominated the game.
O'Sullivan also has it at the moment and that is why he is so dangerous right now.