PROPHETSTOWN - A two-time defending regional champion, Princeton expected to be in position to play for another.

Morrison is a bit of a surprise.

The No. 4 seeded Tigers (15-15) and No. 10 seeded Mustangs (12-16) will meet for the Class 2A Prophetstown Regional championship at 7 p.m. tonight.

In Tuesday’s semifinals, the Tigers outlasted rival Bureau Valley 63-56 to advance while the Mustangs stunned top-seeded Rock Falls 73-66.

Tiger coach Jason Smith said “all bets are off” at this point.

Princeton has twice three-peated as regional champions, winning four straight from 1992-95 and turning another trio from 2009-11. Princeton has won 18 regionals overall.

Morrison has won 27 regional championships, but seeks its first since 2009.

The Tigers and Mustangs have never met before for a regional championship.

The winner advances to the Mendota Sectional at 7 p.m. Tuesday to face the winner of the Winnebago Regional between 2 seeded Rockford Christian and 3 seeded Rockford Lutheran.