Mayweather vs. McGregor prelims do 2,438,000 viewers

The prelims on FOX for the Floyd Mayweather vs. Conor McGregor boxing match did about double the usual level of viewers for boxing on the network.
The two hours leading to the pay-per-view broadcast, airing 7-9 p.m. Eastern time and 4-6 p.m. Pacific time,averaged 2,438,000 viewers. FOX broadcasts of boxing, usually with much bigger name fighters, have averaged 1,427,000 viewers so far this year. It was FOX's most watched boxing show in 20 months, dating back to the Danny "Swift" Garcia vs. Rober