Who will succeed American Pharoah?

NBC Sports presents 142nd Kentucky Derby this Saturday at 4 p.m.

Last spring, American Pharoah captivated fans with the first Triple Crown sweep in 37 years. Who will succeed this historic champion? The road to the Triple Crown starts this week as NBC Sports Group presents 15.5 live hours of Kentucky Derby coverage beginning today at 5:30 p.m. ET on NBCSN, and culminating with the 142nd running of the Kentucky Derby on NBC, this Saturday, May 7 (4 p.m.). Saturday's Derby Day coverage begins at noon on NBCSN.

This year will see the most comprehensive coverage plan in Kentucky Derby history, with more than 50 cameras, including a new 360-degree robotic camera on the infield; a new helmet camera on the outrider (escorts the winning horse and jockey to the winner's circle); a camera suspended 80-feet high on the Churchill Downs video board structure; a robotic camera in the paddock saddling area; and a camera on race caller Larry Collmus; and a jockey, trainer and owner will be wired-for-sound for final jockey's instructions and post-race reactions.

Among the features on NBC's Kentucky Derby coverage on Saturday:

•A look at Kentucky Derby favorite Nyquist, who has won all seven of his races.

•A profile of the Desormeaux brothers - trainer Keith and jockey Kent - who are key members of the team looking to guide Exaggerator into the Derby winner's circle.

•A discussion with Mike Repole, the outspoken owner of Derby contender and Wood Memorial winner Outwork.

•Carolyn Manno visits with American Pharoah at Coolmore's Ashford Stud, his new home.

•Rutledge Wood's "first Kentucky Derby."

NBC Sports Group's coverage of the Kentucky Derby features hosts Bob Costas, a 26-time Emmy Award-winner, and Tom Hammond, the authoritative voice of every Kentucky Derby telecast since NBC began airing the event 15 years ago (2001); analysts Randy Moss and Jerry Bailey, the Hall of Fame jockey and two-time Kentucky Derby winner; analysts/handicappers Bob Neumeier and Eddie Olczyk; NBCSN host/NBC reporter Laffit Pincay III; reporters Kenny Rice, Donna Brothers andJay Privman; and race caller Collmus. In addition, Manno will provide a mix of features and interviews at Churchill Downs; former U.S. Olympic figure skaters and NBC figure skating analysts Johnny Weir and Tara Lipinski reprise their roles as fashion and lifestyle experts; and NBC Sports Group's NASCAR features reporter Wood makes his Kentucky Derby debut as an event and social media reporter.