It didn’t mean all that much at the time. Early last March free-agent quarterback Elvis Grbac took a spur-of-the-moment trip to the Maryland home of Ravens coach Brian Billick. It was assumed that Baltimore would sign free agent Brad Johnson, who had played for Minnesota for seven years while Billick was an assistant coach there. But after Grbac expressed a strong desire to play for Billick (during a five-hour meeting that took place while Billick’s daughter’s slumber party raged in the next room), the Ravens decided to offer the same contract to both quarterbacks and sign whichever one agreed to the terms first. Grbac jumped at the deal, and a few days later Johnson signed with the Buccaneers. On Saturday night (ABC, 9:00 ET) Grbac and Johnson face off when Tampa Bay (8-6) hosts Baltimore (9-5). Each team needs a win to qualify for the playoffs; Johnson needs a victory to prove to Billick that he made the wrong choice last spring.