2016 IAAF World Track & Field Championships Airs Live on NBC Sports

NBCSN presents coverage of the 2016 IAAF World Indoor TRACK AND FIELD Championships this weekend from Portland, Ore., beginning tomorrow (Friday) night at 12:30 a.m. ET and continuing live this Saturday, Mar. 19, at 9:30 p.m. ET and this Sunday, Mar. 20, at 4 p.m. ET.

The women's field features reigning Olympic champion and world record-holder Jenn Suhr in the pole vault, 2013 world 100m hurdles champion Brianna Rollins and reigning 2014 world champion Nia Ali in the 60m hurdles, 2015 World Championships 100m bronze medalist Tori Bowie in the 60m, and two-time Olympian Shannon Rowbury in the 3000m. 2016 U.S. indoor champion Vashti Cunningham, who is the daughter of former NFL quarterback Randall Cunningham, in the high jump.

The men's field is highlighted by 2012 Olympic decathlon gold medalist and two-time defending world champion Ashton Eaton in the heptathlon, 2012 Olympic silver medalist Erik Kynard in the high jump, two-time world medalist Matthew Centrowitz in the 1500m, 2015 World Championships 100m bronze medalist Trayvon Bromell in the 60m, and world record holders Kyle Clemons and Calvin Smith look to defend the U.S. title in the 4x400m relay.

The international field in Portland features three-time Olympic medalist Meseret Defar of Ethiopia competing along with countrywoman and world record-holder Genzebe Dibaba in the women's 3000m, the Netherlands' Dafne Schippers, who won two medals at the 2015 World Championships, in the 60m, two-time World Championships heptathlon silver medalist and wife of Ashton Eaton Brianne Theisen-Eaton of Canada in the pentathlon, former world record-holder Asafa Powell of Jamaica in the 60m, 2008 Olympic silver medalist Nick Willis of New Zealand in the men's 1500m, and 2013 world champion Mohammed Aman of Ethiopia in the men's 800m.

Tom Hammond hosts coverage, joined by four-time Olympic medalist Ato Boldon, Craig Masback and Todd Harris.

NBC Sports Live Extra - NBC Sports Group's live streaming product for desktops, mobile devices, tablets, and connected TVs - will stream coverage via "TV Everywhere," giving consumers additional value to for their subscription service, and making high quality content available to MVPD customers both in and out of the home and on multiple platforms. The NBC Sports Live Extra app is available on the iTunes App Store, Google Play, Windows Store, Roku Channel Store, Apple TV and Amazon Fire. For desktops, NBC Sports Live Extra can be accessed at NBCSports.com/liveextra.