ESPN’s “”College GameDay”” has rolled onto the UA Mall in front of the Student Union Memorial Center.

Arizona Athletics is encouraging Wildcat fans to start showing up around 5 a.m. for Saturday’s “”GameDay”” pre-game show for the Arizona-Oregon showdown.

Although ESPN will not be live until 8 a.m., the network will start capturing fan shots and “”SportsCenter Live”” footage around 7 a.m.

While actual setup for the college football spectacle is not expected to begin until this afternoon, two semi-trucks parked in front of the student union last night in preparation for the program. ESPN will begin airing live from campus during Friday’s “”SportsCenter”” coverage and then during Saturday morning’s “”SportsCenter”” and “”GameDay”” programs.

The “”GameDay”” crew will set up on the west side of the cactus garden in front of the Administration building, with cameras facing west to capture a view of the student union and Old Main, Arizona Athletics assistant media relations director Blair Willis confirmed.

Fewer than 800 tickets remain for the showdown, set for Saturday at 6 p.m.