Around 90,000 fans, mostly in Mexico's green shirts, will pack into the Rose Bowl to watch events unfold while the match will almost certainly draw a tournament record television audience, thanks largely to Spanish language coverage in North America.
On the field, the third consecutive Gold Cup final between the two regional powerhouses, has an extra edge with the United States looking to equal Mexico's record of five championships.
Bob Bradley's team also want to avenge their loss in the final two years ago when a weakened U.S. side was humiliated 5-0 at the old Giants Stadium in New Jersey.
Warner, in charge of the organization for almost 30 years, quit last week but the investigations into bribery charges involving some of CONCACAF's Caribbean member associations has continued while the organization has been running a 12-team tournament and 13 venues across the States.
"This tournament will set attendance records and my guess is there will also be television records, the event has been a huge success," Sunil Gulati, U.S. Soccer president and CONCACAF executive committee member, told Reuters.
"All of the other things that have happened in the political world or the administrative board-rooms, we have got to get straightened out and I think we will over time. It has been a crazy few weeks but in the end this is what it is all about, a full stadium, two good teams and passionate fans."
A sixth Mexican Gold Cup title would be celebrated long into the night in the bars across the both borders where fans of 'El Tri' gather to watch their team, but the team in red, white and blue are aiming to be party poopers.
