3) Shot clock. One of the key factors in the Midshipmen's upset of Johns Hopkins last spring was their ability to jump out to a 3-0 advantage in the first quarter. Once Navy had the lead, the offense was able to hold onto the ball for extended periods and simultaneously wear down the defense and prevent the Blue Jays offense from making a comeback. But with the installment of a 30-second shot clock after a stall warning has been issued, ESPN analyst Quint Kessenich said the Midshipmen will not be able to employ a similar strategy on Saturday. "I think the timer on and shot clock will play into Hopkins' favor," the former Johns Hopkins All-American goalkeeper said. "That was a game last year where Navy held onto the ball behind the goal, grinded it out with really long possessions, the Hopkins defense got tired, and Navy's quick, little, rugrat attackmen were able to scoot by them and score goals. Navy outplayed them and beat them. But the rules have changed, and that's going to hurt any chance of Navy to try to grind the clock."