The lights of the Philips Stadion dimmed momentarily, and was replaced by a pulsating glow from the giant screens as the players emerged from the tunnel.
The roar from the crowd was deafening, the stands were a sea of motion as flags waved and scarves twirled.
Leading the procession were the match officials with their bright yellow kits standing out against the darker tones of the players behind them.
PSV's team, clad in their iconic red-and-white stripes, walked out to the thunderous applause of their home crowd.
Behind them came AZ Alkmaar, their black kits gleaming under the floodlights, and the smaller section of traveling fans making their voices heard.
The players formed two orderly lines at the halfway line, the captains shaking hands with the officials before exchanging pennants.
The tension in the air was almost tangible, every fan in the stadium glued to the scene unfolding.