What's at stake?

The Raiders (8-5) need to win the league automatic qualifier to make the NCAA tournament. The defending league champion Mountain Hawks (10-4) have an NCAA resume that puts them on the bubble.

"This is one of the more physical rivalries in the country," said Evan Washburn of CBS. "There is history between these two teams, most notably last year's Patriot League championship game. When these two teams met in early April, they combined for 20 flags, seven slashing penalties and four unnecessary roughness calls."

Who to watch?

Lehigh's headliners are their productive attack trio of David DiMaria, Dante Fantoni and Dan Taylor. Can the midfielders, led by Brian Hess (McDonogh), score? Colgate counters with the best player on the field, 2012 Tewaaraton Award winner Peter Baum. He's capable of taking a game over. His wing man is Ryan Walsh, a big lefty. But too often the pair operate like the odd couple.

What will make the difference?

Colgate's Robert Grabher needs to win the faceoff battle, and the Raiders must rekindle the Baum magic of 2012. Lehigh has the home-field advantage, superior depth and the better defense with Ty Souders, Mike Noone, Baxter Lanius and Tripp Telesco. The Mountain Hawks are 9-2 with Matt Poillon starting in goal. If they can keep Baum and the Raiders to fewer than 10 goals, they will advance.

Loyola at Johns Hopkins

Saturday, 2 p.m. (ESPNU)

What's at stake?

It's homecoming at Homewood for this local rivalry with national implications. The Blue Jays (8-4) are battling for their playoff life; a loss would end one of the most forgettable seasons in their history. With a win, Hopkins puts itself right back into the hunt for an NCAA title. For the Greyhounds (10-3), a victory would boost their at-large resume and give them a fallback position if they're unable to secure the Eastern College Athletic Conference automatic bid next week.

Who to watch

Hopkins' triggerman is faceoff specialist Mike Poppleton. He gives the Jays an extra six or seven possessions on a weekly basis. Midfielder Rob Guida has returned to the lineup, and his presence can't be underscored.

The matchup between Loyola attackman Justin Ward (Old Mill) and Hopkins defenseman Tucker Durkin is critical. Ward has become the centerpiece of Loyola's half-field sets under new offensive coordinator Dave Metzbower.

What will make difference?

Loyola owns the top defensive midfield in the country, with Josh Hawkins, Pat Laconi and charismatic pole Scott Ratliff. They earn possessions, defend and even score goals.

The Blue Jays have been winning with defense, while shot selection has plagued their offense. "Hopkins must execute and score in half-field sets," ESPN analyst Mark Dixon said. "They need to capitalize on Poppleton's extra possessions."

Loyola is finally clicking. "The Greyhounds' transition game, the ability to run and score on Hopkins is key," Dixon said. "Loyola middies [Davis Butts, Chris Layne and Sean O'Sullivan] need to score in settled situations."

Loyola gets a slight edge, but it's offset by Hopkins' home-field advantage and the Blue Jays' dominance in the series under coach Dave Pietramala, who is 12-0 against his Charles Street foe. If there's one game you're going to attend as a fan, this is the must-see game of the spring. It'll have pageantry, playmaking and playoff implications.

Princeton vs. Cornell