Opposing teams have managed to convert just 25% of their extra-man advantage situations into goals against Duke this season.

Considering that Duke converts 65% of its man-advantage opportunities, the Crimson may be hard pressed to come out on top if it can't muster some offense against a set Duke defense.

But before Harvard can go on offense it must clear the ball out of its defensive end. The Crimson has struggled at times this year to get the ball to its attackmen.

Penn (3-2, 0-1 Ivy), ranked 19th in the nation, has had an up and down season. The Quakers beat 13th ranked Notre Dame and 20th ranked Bucknell earlier this year by scores of 10-7 and 5-4 in overtime respectively.

However, Penn lost to North Carolina 13-6 and in the following game lost to Yale 11-10.

"Even though Penn lost to Yale," Anderson said. "They are a very good lacrosse team and we have to be prepared for them."

Penn may be a better match-up for the Crimson than Duke because the Quakers rely on a streaky offense to keep them in games.