With five of the six teams in the Pacific 10 Conference Southern Division ranked among the top 11 women's tennis teams in the nation, you can bet Arizona's match today against No. 11 Southern Cal and tomorrow's against No. 7 UCLA are huge.

The 10th-ranked Wildcat team puts its 4-0 record on the line at the Robson Tennis Center at 1:30 p.m.

USC comes into Tucson with a 2-0 record, and for the first time this season will play at full strength.

"The exciting thing for us is that we will have our entire lineup ready to play," Trojan head coach Richard Gallien said. "This will be the first match that we are going to be at full strength. We have had some eligibility problems and we have overcome th em."

The Trojans are led by All-America doubles player Suzanne Italiano.

However, the match of the week is against UCLA.

The Bruins are led by Keri Phebus, who is back to defend her national singles championship. Arizona's No. 1 player, All-American Vicky Maes, has never beaten Phebus. The two met at the Rolex-Intercollegiate Tennis Association singles final earlier this ye ar, with Maes taking her to three sets until Phebus won 6-4, 4-6, 6-3. That match at noon should set the tone for the day.

"She matches up very well against Vicky (Maes), it should be an exciting match," UCLA head coach Stella Sampras said.

For Arizona to win five of the nine games and walk away the winner, they are also going to have to depend on Stephanie Sammaritano, Betsy Miringoff, Khristen Pietrucha, Brooke Herman, and Monique Allegre. They all participated in the Arizona Invitational last week and have been the scoring players on the team.

UA will be without injured players Olivia Gravereaux, Erin Pavelko and Karen Goldstein.

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With No. 1 singles player Jan Anderson in Israel playing for Norway's Davis Cup team, the Arizona men's tennis team has to find a way to replace him.

No. 25 UA (3-1) hosts Utah today at the Westin La Paloma Country Club at 1:30 p.m.

"Without Jan we're not as strong, but we still have a deep team. This is not an earth-shattering event," head coach Bill Wright said.

With a veteran team, the Wildcats don't lose a tremendous amount when it comes to player ability.

"Everyone will have to move up a spot," Wright said.

Henrik Wagner should replace Anderson at the No. 1 singles position, but the announcement of playing order doesn't have to be made until 30 minutes before the match.

Utah comes to Tucson with a 3-2 record, winning their last three and beginning a three-game road trip. Utah is led by 27th-ranked Christian Svensson, who upset the 13th-ranked player last week in a match with Brigham Young.

"The competition is obviously tough. This will present a definite challenge for our program," Utah head coach F.D. Robbins said.

Playing under the new rules, each schools's top three doubles teams play each other first, with the school capturing two out of the three matches gaining the doubles' point. Then the top six singles players compete for the remaining six points. It takes f our points to win the competition.

Last year Anderson had the chicken pox and participated in the Davis Cup, causing him to miss a month of play.

"The team didn't play well during that stretch," Wright said.

But that was last year, and newcomers Tom Haugland and Wagner - and seniors Chris Jenkins, Vuk Tapuskovic and James Rey € should prove otherwise. Juniors Eddie Schwartz, Jack Enfield, Mark Jariabica, Matt Kleiner and sophomore Roland Kupka round out the W ildcat squad.