Veteran Glendale Coach Bob Davidson, whose squad went 6-8 and took third in the Pacific League, said he's aware that the Rebels are strong in singles and could pose matchup problems.
The Rebels are led by junior singles players Kira Lee, the reigning All-Area Player of the Year, and Jenise Vargas. Vargas, a sophomore, earned All-Area accolades last season.
"They are strong in singles, so those aren't good matchups for us," said Davidson, who will feature singles player Adrine Babakhanian. "I think if we can play well in doubles then we have a competitive chance.
"We are going to have to play our absolute best in doubles. They are going to have to step up and do it."
The winner of the Glendale-Flintridge Prep battle will travel to Mission Viejo for a first-round match at 2 p.m. Thursday.
Crescenta Valley (13-4) will enter the playoffs having finished second in the Pacific League. A handful of Falcons players fared well last week at the league finals and will look to pick up their pace against an Edison squad that went 12-4 and took second in the Sunset League behind top-seeded Newport Harbor.
Crescenta Valley first-year Coach Sarah Wiggins said the Falcons have some playoff-tested seniors in Erin LeVoir and Sarah Ali who will look to carry the squad deep into the playoffs.
"I feel happy that we have a home match and the main focus will be keeping their spirits up," Wiggins said. "We have a good team if everybody is healthy.
"We are going to have some tough practices through Wednesday and get some momentum off that."
The winner of the Crescenta Valley-Edison match will meet San Marino, Dos Pueblos or Foothill in a second-round match Saturday, with San Marino the favorite.