(WNFL) - U-W Whitewater could return to the national Final Four tomorrow, with a victory over Linfield of Oregon in the N-C-A-A Division-Three football quarter-finals. Both teams are unbeaten -- Whitewater through 12 games, and Linfield through 11. The Warhawks have Division-Three's best scoring defense, giving up just seven-and-a-half points a game this season. Linfield has the nation's top scoring offense, averaging almost 52 points each week. Of the eight remaining teams, Whitewater has the best turnover margin, forcing two-point-three mistakes per game. The Warhawks have 28 more takeaways than giveaways. Linfield made the Elite Eight round with a 31-21 victory over Hampden-Sydney last week. Whitewater advanced with a 33-to-3 home rout of Franklin.