Abel Sanchez has claimed that Gennady Golovkin is yet to hit an opponent with the full force of his power, despite knocking out 33 of his 36 opponents.

Triple G will put all four of his middleweight titles on the line this weekend, as he faces mandatory challenger Daniel Jacobs at Madison Square Garden in New York.

Golovkin will be looking to further cement his reputation as the undisputed king of the middleweight category and Sanchez, his coach, believes he has achieved his 92% knockout ratio without using 100% of his power.

“In forty years, I have never had a fighter that hits as hard as Gennady, but I am fortunate that he doesn’t hit me as hard as he can and as hard as he has hit someone in a fight,” said Sanchez.

“I have seen him hit someone 100% with protection on but I have never seen him hit someone 100% in a fight. He hits very hard and I feel it at night when I go to bed. My shoulder hurts but that is part of the job.”

Golovkin has described his fight on Saturday as his “toughest bout yet” and his opponent Jacobs is a natural born fighter.

The Miracle Man overcame a rare form of bone cancer to return to the ring in 2012 and has become a serious proposition in the middleweight division, losing just one of his 33 fights and winning 29 through knockouts.

Sanchez believes his man Golovkin won’t be scared of the challenge Jacobs poses, though, claiming that the Kazakh fighter needs a challenge.

“I think that all of these fighters like Kovalev and Andre and Gennady – they need a challenge,” he said.

“Not just a physical challenge but also a mental challenge and he presents that for us. He is the first guy in a while since maybe Lemieux and Stevens that got Gennady fired up.

“Not that he trains any harder because he trains hard for all of his fights, but mentally motivated to have a guy across from you that is going to be a great challenge that could outbox him and we’ll see what happens.

“He has good power, so does Gennady, and we’ll see who can impose their will on the other guy.”