Georgia righthander Joshua Fields, the 20th overall pick by the Mariners, isn’t expected to sign tonight. As a college senior with no eligibility remaining, he has until a week before the 2009 draft to agree to terms. He’s on the back burner for agent Scott Boras, who has his hands full with four other first-rounders (Pedro Alvarez, Eric Hosmer, Allan Dykstra, Gerrit Cole) and a sandwich pick (Jeremy Bleich).