Ronnie Brown, a restricted free agent this offseason, has not signed his $3.97 million tender because he's pushing for a multi-year deal the Dolphins haven't offered. "I can't worry about it too much. I can't sign myself," said Brown, who rushed for 648 yards, averaging 4.4 yards per carry, and scored eight touchdowns in the nine games he played last season. "If I start to worry about it, is it going to change it? If I start to talk about it, is it going to change it? Is [my contract situation] going to become a positive or a negative?" Brown realizes another Pro Bowl season, like the one he had in 2008, would drive up his asking price as an unrestricted free agent in 2011. Brown's frequent injuries makes getting a long term deal difficult, as does the potential lockout. "When you worry about outside things is when you become affected on the field with how you're playing," said Brown, who has rushed for 4,081 yards and scored 34 touchdowns since the Dolphins made him the second-overall pick in the 2005 draft. "I try not to worry about that and not let things bother me. ? When it comes, you address it at the time. But I just got to keep playing football, and that's what I get paid to do." Brown estimates he's about 80 percent recovered from the Lisfranc fracture to the midsection of his right foot he suffered in November. But during last weekend's minicamp, where he participated in all the team's work, Brown was adamant he'd be healthy enough to play Sunday if the Dolphins had a game. "With injuries, a lot of people get caught up with a timeframe. This guy came back in six months. This guy came back in four months. I think it's up to the individual," said Brown, who signed an injury waiver that allows him to participate in the offseason program. "For myself, I'm going based on how I feel. If I feel good I'm going to practice. From the recovery standpoint everything is going in the right direction."