Shawn Porter headlines Mayweather vs. McGregor preliminary card on FOX

With the pay-per-view undercard for Floyd Mayweather Jr. vs. Conor McGregor finalized, we also have a full preliminary card set for the FOX broadcast. These are the following matchups you'll see in the lead-up to the 9 PM ET main card start time on Saturday, August 26th: Shawn Porter vs. Thomas Dulorme - 10 rounds, welterweights Juan Heraldez vs. Jose Miguel Borrego - 10 rounds, junior welterweights Kevin Newman vs. Antonio Hernandez - 6 or 8 rounds, super middleweights Savannah Marshall vs. Amy Coleman - 4 rounds , super middleweights The biggest name here is Shawn Porter, who's the former IBF welterweight champion, before he lost the belt to Kell Brook in 2014.