It was the beginning of a beautiful relationship that led to stints with the U.S. Women's national team program and a NCAA title with Stanford (19-1) two years ago.
The one thing Klass and her teammates have never won is the MPSF tournament title, though the Cardinal won't lose sleep over it.
"To be honest, it's not on my mind," Klass said. "The conference is so loaded it's almost like a dress rehearsal for NCAAs. Beacuse we've played each other already we know we're going to get everybody's best game. It will be intense."
The top four nationally-ranked teams are all in the MPSF and USC is the defending national champion. In fact, USC, Stanford and UCLA are the only teams to have a NCAA women's water polo title in the 18-year history of the event.
Cardinal coach John Tanner is one of just three coaches with a national title, along with former USC coach Jovan Vavic and former UCLA coach Adam Krikorian, who currently leads the U.S. National team.
Stanford, which earned the top seed, has a bye into the semifinals and will meet the winner of Friday's match between No. 4 Cal (15-6) and No. 5 seed San Jose State (10-13) at 2:30 p.m. Saturday. Sunday's championship match is slated for 3 p.m. MPSF TV will live stream the first two days. Pac-12 Networks will televise the finals.
Klass is one of four seniors, along with Madison Berggren, Cassidy Wiley and twin Mackenzie Wiley.
"I have a voice in the back of my mind reminding me this is the last go-around," Klass said. "I can think about how many games I have left and the feeling is scary. I'm putting everything I have into the year. I don't want to look back and think if I could have done more."
Klass and sophomnore Sarah Klass are one of 3 1/2 sets of sisters on the team and they all bring something different. Freshman Ryann Neushul is the half, following older sisters Kiley and Jamie to The Farm and bringing a family name intertwined with Stanford history.
Olympians Makenzie Fischer, the team's leading scorer, and Aria Fischer are also on the roster.
"The dynamics between each pair is fun to watch," Klass said. "Aria and Makenzie will always pass to each other at the beginning of practice, the Wiley's love to needle each other and Sarah and I have similar personalties. She wants to show up and get things done right away. I'm like that too."
Klass made an impression on Tanner even before enrolling at Stanford. She made the trip to Korea for the 2015 World University Games with the Cardinal, the designated U.S. representative.
"She was great," Tanner said. "She was impressive as an athlete but what really stood out was her presence. She had a maturity about her that stood out. She blended in real well."
As for the MPSF tournament?
"Like the regular season, we go into every game believing we will win," Tanner said. "We will lay it all out there and play our best."CharStyle:endbullet>n
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