The crown jewel of American horse racing will welcome back the sport's most famous trainer at the Kentucky Derby this year, as Bob Baffert returns from a three-year ban, while heavy favourite Journalism hopes to make some headlines of his own.

With his ban from Churchill Downs-owned tracks behind him, horse racing's most famous trainer knows this week is "all about the horses."

Sat on the bench for seven weeks (not a good thing) after winning the Virginia Derby at minor-league Colonial Downs. Trainer D. Wayne Lukas has won four Derbys. This one won’t get him his fifth.