A week after two excellent nights of boxing (1, 2), we get another world title fight, this one a Top Rank pay-per-view presented by ESPN. On Saturday, Terence Crawford will defend his WBO welterweight title against Amir Khan in the headlining bout of the main card, which begins at 9 p.m. ET. How to watch Crawford vs. Khan Date: Saturday, April 20 Location: Madison Square Garden, New York City, N.Y. Time: 6 p.m. (prelims), 9 p.m. (PPV) TV: ESPN2 (prelims), ESPN Pay-per-view (main card) Online Streaming: FITE TV, Top Rank, WatchESPN (Prelims) Crawford vs. Khan fight card There will be a preliminary card on ESPN2 beginning at 6 p.m., which will also be streamed via WatchESPN. The pay-per-view can be purchased and streamed online via FITE TV and Top Rank. The card is set to take place at Madison Square Garden in New York. The four-fight main card will also include a bout between Shakur Stevenson and Christopher Diaz, a showdown between Teofimo Lopez and Edis Tatli, and a bout between Felix Verdejo and Bryan Vasquez. It�s a pretty stacked card and there are some good fights on the prelims as well. Crawford is 34-0 as a professional, with knockouts in his last three fights, the most recent being a TKO over Jos? Benavidez Jr.He�s finished 25 of his 34 wins via knockout. He currently has the WBO welterweight belt, and previously vacated belts at light welterweight. His move-up fight was against Jeff Horn, which he won via TKO in June 2018. Khan wasn�t the first choice for Crawford�s next opponent, but it should be an entertaining scrap, regardless. He�s a former world champion and has a 33-4 professional record. He has 20 knockout victories, but three losses by knockout. His most recent loss was to Canelo ?lvarez in May 2016, a knockout. He was out of the sport for a couple years, but has since beaten Phil Lo Greco and Samuel Vargas. Stevenson and Diaz will probably combine for the most intriguing bout on the main card. Stevenson is 10-0 as a professional and everyone is still unsure where his ceiling is. Diaz is 24-1. Lopez is also undefeated, at 12-0, and he faces the experienced and tough Edis Tatli, who sits at 31-2 for his career. Below is all you need to know to watch the action.