The Seattle Seahawks and their top pick, left tackle Russell Okung, have agreed to a six-year, $48.5 million deal, sources told ESPN senior NFL analyst Chris Mortensen. Okung, the No. 6 overall pick out of Oklahoma State, gets more than $29 million in guaranteed money, according to sources, and the deal's maximum worth is $58 million. The Seahawks hope to have Okung on the practice field Saturday. Okung and C.J. Spiller, the Buffalo Bills' top pick, were the last two first-rounders to agree to terms. Spiller agreed to a five-year deal Friday worth a maximum $37.5 million, with $20.8 million guaranteed, a source told ESPN senior NFL writer John Clayton. Source: ESPN.com