
Marco Antonia Barrera cannot decide between Floyd Mayweather and Manny Pacquiao.
The Mexican legend and former three-weight world champion believes both have their own threats ahead of tonight's way in at the MGM Grand Arena in Las Vegas.
Barrera was beaten twice by Pacquiao -stopped in the 11th round in 2003 and out-pointed in 2007 - but has flown in for the Fight of the Century, live on Sky Sports Box Office, and admits he has met them both before but is still not certain who he is backing.
"It's a tough fight, I really tough fight," he told Sky Sports News HQ.
"Manny Pacquiao can put pressure on him and will try and put pressure on him. If he [Mayweather] is caught Pacquiao will win the fight but if it's by decision, Mayweather will win.
"I don't know who is going to win it, but it is a top, top fight."
Barrera is one of the famous faces that will be there as 10,000 fight fans gather to see Mayweather and Pacquiao come in under the 147lb limit and then go face-to-face for the final time.
You can watch it live on Sky Sports News HQ from 11.00pm tonight,
Book Mayweather v Pacquiao, Sky Sports Box Office, May 2, via your Sky remote, phone or online now. If you want to record the event, book via your Sky remote. skysports.com/maypac