Gary Roberts officially signed with the Lightning. He will make a base salary of $1.2 million and will get $10,000 for every game he plays. The deal is potentially worth $2 million.
Tampa Bay also officially signed forward Vaclav Prospal. The Lightning acquired his rights from the Flyers June 18 in exchange for a seventh-round pick in the 2008 draft and a fourth-rounder in 2009.