Savannah Marshall's savage knockout compilation proves insane punching power

Savannah Marshall is currently preparing for her blockbuster fight against Claressa Shields at the O2 Arena.

The pair will touch gloves on Saturday evening in a battle to become the unified middleweight champion.

Their bout will be part of a historic all-female card, which includes Mikaela Mayer, Alycia Baumgardner, Lauren Price, Caroline Dubois and Karris Artingstall.

Everyone will be eager to get in the ring after the fight was delayed by a month following the death of Queen Elizabeth II. With the rearranged bout now just days away, anticipation is reaching fever pitch.

Marshall’s trainer, Peter Fury, has previously claimed the 31-year-old is the hardest puncher in women’s boxing.

A YouTube compilation of Marshall’s most vicious knockouts, uploaded by Sky Sports, certainly suggests this could be the case.

The WBO middleweight champion has knocked out 10 of her 12 opponents so far, including Daniele Bastieri, Hannah Rankin, Femke Hermans and Maria Lindberg.

Marshall’s punching power is shown in all its glory during the YouTube compilation, and Shields will surely be concerned she may fall victim to a knockout.

Video: Watch compilation of Savannah Marshall's savage knockouts

Shields does not seem intimidated by Marshall’s punching power, however. In fact, the American star believes she will be the one delivering the knockout blow.

"I knew I was going to beat Savannah Marshall on September 10, but now I really feel in my spirit that I am going to knock Savannah Marshall out, this is going to be my statement fight,” Shields told Sky Sports.

"She talked all that stuff about pillow fists, but she’s not going to stand there and fight me. She’s not going to be able to handle my shots. She can’t outbox me. She’s not very