Youth or experience? Power or IQ?
Those are just two of the questions which will be answered tonight as Vasyl Lomachenko takes on Teofimo Lopez for the undisputed lightweight crown.
The two world champions clash in a fight that has been in the making for over a year as both men bid for greatness.
Lomachenko brings a stunning amateur and professional record to the ring while Lopez has long promised to be the next big star in the sport.
This promises to be the best fight since Tyson Fury dethroned Deontay Wilder way back in February, and here is everything you need to know about it...
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What TV channel is it on and is there a live stream?
To many fans' shock and surprise, this fight has not been picked up a regular TV network in the UK.
Instead, it will be streamed by Fite TV at a cost of £9.99 which is significantly less than both Sky Sports and BT Sport charge for their pay-per-view fights.
Head over to the Fite TV website to purchase the fight.
You can also watch the undercard for free from 12.30am before the encryption kicks in at 3am.
What time is the fight?
UK fight fans face a familiar dilemma tonight: Get up, or stay up?
Lomachenko and Lopez will walk to the ring between 4am and 4.30am UK time which is eight hour ahead of the west coast of America where this fight takes place.
The co-main event between Alex Saucedo and Arnold Barboza Jr will start shortly after 3am with Lomachenko vs Lopez on afterwards.
Odds
If you, like plenty others do, fancy Lopez to upset the odds and beat Lomachenko, you can find odds of 10/3 on the younger man prevailing tonight.
But despite his confidence and his KO record, bookmakers are not convinced he has what it takes and have priced up Lomachenko accordingly.
There is little value in his price of 1/4 so perhaps look to the method of victory markets.
Who is on the undercard?
Alex Saucedo vs Arnold Barboza Jr
Josue Vargas vs Kendo Castaneda
Edgar Berlanga vs Lanell Bellows
Jose Enrique Durantes Vivas vs John Vincent Moralde
Quatavious Cash vs Quincy LaVallais
Quinton Randall vs Jan Carlos Rivera
Jahi Tucker vs Charles Garner
