If Harvard's varsity fencers don't psyche out, they will trounce Princeton for their first Ivy League win at 2 p.m. today in the IAB.

Crimson swordsmen are easily rattled. They blew last week's Penn match when two sabre men dropped tense 5-4 bouts in the first round. But he probably wont' lose their cool against Princeton, one of the League's weaker teams.

Princeton has only three returning lettermen from the team which beat Harvard, 16-11, last year. Foil is the strongest Tiger weapon, with Charlie Wertheimer and second team all-Ivy Jim Sisserson. Senior Rick Bradstreet will probably be third in foil.

Captain, Steven Harwood is Princeton's only competent epee fencer. Ken Boudwin, who lost three of his four varsity bouts last year, is second man. Harvard's Harry Jergesen and Steve Shea could sweep three bouts each against the Tigers meekest team.

In sabre, Princeton will rely on senior Tim Barrows and sophomores Steve Oxman and Joe Padula, Harvard has lost lead sabre man, Paul Profeta, who is on leave of absence. But junior Dave Redmond, Profeta's replacement, has a year of varsity experience. Redmond nearly beat Princeton all-American Mike O'Sullivan last year when Coach Edo Marion moved Profeta to open.

Princeton is 1-1 in Ivy play, with an 18-9 win over Cornell and an 18-9 loss to Penn. Harvard lost to Penn by the same score last weak.