Eiichiro Oda has already hinted on who gave Whitebeard the large scar on his chest in One Piece and it's not Shanks or Roger.
Some characters have haki so powerful that it can split the sky in One Piece. Here are the characters who can make use of it.
It must be noted that Whitebeard was already on his last legs at this point in the story. He had a hole in his chest and half of his face blown off, and all of it came on the back of his already ...