The main boxing attraction of the weekend is Manny Pacquiao's return to the ring on pay-per-view against Jessie Vargas for the WBO welterweight title, but they will have a tough time creating a more exciting finish than what Steve Nelson did to Reyes Diaz.

On a Top Rank boxing card, Nelson delivered an absolutely vicious right hand to Diaz that sent him to the canvas and put him out cold.

Nelson's right hand ended the fight with authority as Diaz's right leg crumpled underneath him when he went out and to his back. If we get a finish anything close to that from Pacquiao-Vargas on Saturday night it will be well worth the price to watch.