The conventional thinking of many NFL fans and pundits is that Super Bowl XLVIII will be decided by either the brilliance of Peyton Manning and the Denver Broncos’ high-powered passing attack or the dominance of the Seattle Seahawks’ defensive backfield, known as the “Legion of Boom,” led by their self-assured and refreshingly unfiltered cornerback Richard Sherman.

Unquestionably, the aforementioned participants will have significant impacts on the game’s outcome, scheduled to kick off shortly before 6:30 p.m. this Sunday at MetLife Stadium in New Jersey. Yet it will be the Seahawks’ bruising running back Marshawn Lynch and dynamic wide receiver Percy Harvin who will produce the night’s defining plays.

The powerful 5-foot-11, 215-pound Lynch, aptly nicknamed “Beast Mode,” rushed for 1,257 yards and 12 touchdowns during the regular season. He is arguably the most effective runner between the tackles in the NFL but also possesses deceptive speed. The 27-year-old Oakland, Calif., native is as good a bet as anyone to end the evening as the Super Bowl MVP.

Lynch, who shuns the press, walked out of his interview session after six and half minutes of fielding questions at the mandatory Media Day gathering at the Prudential Center in Newark—this after threatening to not show up at all.

“I’m just about that action, boss,” Lynch explained to Deion Sanders of the NFL Network regarding his aversion to the media.

The Seahawks, in need of a big play receiver, acquired Harvin from the Minnesota Vikings last May for three draft picks. They subsequently signed him to a deal that includes $25.5 million in guaranteed money.

A chorus of voices have characterized the deal as a bust for the Seahawks. The injury-riddled Harvin appeared in only one regular season game due to an offseason hip surgery that was slow to heal. The 25-year-old University of Florida product returned to the field in the divisional round versus the New Orleans Saints but sustained a concussion late in the first half and sat out the NFC Championship Game against the San Francisco 49ers. However, Harvin will gain redemption by putting his imprint on what will be a 24-23 Seahawks victory.