Defensemen Jack Breit and Stephen Jahelka; midfielders Sean Mahon, Keegan Michel (McDonogh) and Grove Stewart; and attackmen Matt Scalise and Will Walker are not on the team's roster for 2013.
A Harvard spokesman confirmed the players are not on the roster for 2013 but would not speculate on whether they would be back on the roster in the future. Citing privacy laws, the spokesman would not comment on their enrollment status at the university, nor would he comment on the recent academic scandal at the university, citing privacy laws.
The loss of Jahelka and Mahon will be especially tough for the Crimson. Jahelka played in 14 games last season, causing 17 turnovers and scooping 33 ground balls. He was the No. 1-ranked defensive recruit in IL's 2011 rankings. Mahon played in 13 games his freshman year, scoring three goals. Mahon was the No. 4 midfielder in the 2011 IL recruiting rankings.
Also no longer on the roster is freshman Stefan Pate.
•Sophomore attackman David Solomon and freshman midfielder Matt Chanenchuk are off Maryland's roster as of the spring update, though it's unclear whether they're still enrolled at the school or whether either may return to the team in the future. A Maryland spokesman declined to comment.
Solomon was the sixth-ranked recruit in Inside Lacrosse's Power 100 in 2011. Chanenchuk, whose brother Mike is a junior midfielder, was the No. 32-ranked midfielder in 2012.
But the one lasting hit for the Cavaliers will be Will McNamara, IL's No. 3 recruit. He will redshirt this season after suffering a hip injury.
"McNamara is a little bit of a blow," coach Dom Starsia said. "We have some depth in the midfield, so we feel OK. As a freshman, you try and tell him this is the best point for this to happen."
Last year, Castelo started all 16 games for the Tigers, scoring a goal, picking up 20 ground balls and causing 11 turnovers. With starters Chad Wiedmaier, Jonathan Meyers and John Cunningham graduated, Castelo was expected to carry much of the leadership load at the defensive end for the Tigers.
•The sweeping rules changes made in the offseason have been the talk of lacrosse. Among the changes were stricter rules about sticks, most notably the distance between the top of the crosse and the shooting strings. The stick-check procedure has undergone a change after feedback from fall practices. Referees will no longer put the ball in the back of the stick to check if it becomes lodged as part of the stick-check procedure.