Britain’s Anthony Joshua registered a lower weight than rival Kristian Prenga in the concluding weigh-in.
The top-weight fight opening sets up a likely showdown with Tyson Fury.
UK fans can watch undercard action starting at 7.30pm and then the main event at 10.00pm.
Coverage stays on ESPN as well as the London Evening Standard as expected.
Anthony Joshua vs. Kristian Prenga: How to watch in UK, ring walk time, date, TV channel, undercard ESPN
What time is Anthony Joshua fight tonight? Ring walks, undercard and prediction London Evening Standard
Joshua vs Prenga: Start time, undercard and how to watch fight The Independent
Anthony Joshua vs Kristian Prenga: Live stream, TV channel & undercard The Sun
Here's How to Watch Anthony Joshua vs. Kristian Prenga Boxing Pay-Per-View Live Online Variety