The Big 12 announced Friday night it is adding Arizona, Arizona State and Utah as members next year, completing its raid of the Pac-12.

The latest blow to the Pac-12, came just hours after the Big Ten welcomed Oregon and Washington to grow its new West Coast wing next year.

A little more than a year ago, Southern California and UCLA announced they were joining the Big Ten in 2024. With the Ducks and Huskies, too, the Big Ten will be an 18-team conference.

The Big 12 has been targeting the Pac-12’s so-called Four Corner state schools for months, with Colorado making the jump last week.

The additions of the Arizona schools and Utah give the Big 12 16 schools, stretching from Florida to Arizona.