The San Francisco 49ers are dealing with two potential holdouts.Star tight end Vernon Davis and standout guard Alex Boone have stayed away from the voluntary portion of the offseason. Both are unhappy with their contracts. Neither will be considered a holdout until they miss the mandatory minicamp, which runs June 17-19.Which player do you think more deserves a new deal? Davis, 30, is highly productive and is the third highest paid tight end in the NFL.