Dolphins coach Nick Saban said Saturday the team is trying to sign free agent linebacker LaVar Arrington despite lengthy, ongoing negotiations. ''We're trying,'' Saban said after being asked about Arrington during a Q&A session with fans. The hang-up, Saban indicated, is money. ''We're trying to get a deal that would satisfy him as well as work for us,'' said Saban before explaining some related salary-cap issues.