(The Baltimore Sun) Considered one of the leading contenders to land Terrell Owens, the Ravens officially joined the pursuit of the All-Pro receiver yesterday. According to a league source, the Ravens informed the San Francisco 49ers that they would be interested in trading for Owens, making their first move to acquire one of the NFL's marquee players. The next step is agreeing on how much it will cost to complete the deal, which might end up being a second- or third-round pick in this year's draft. The 49ers, who want a deal finalized by tomorrow, spent yesterday shopping their disgruntled receiver around the league to find his market value and likely didn't come away with a long list of interested parties. The Ravens and Philadelphia Eagles have been the most-publicized candidates. A deal with the Ravens might be pushed into next week since team officials presumably would want to visit with Owens to find a comfort level with him. There have been no negotiations between the Ravens and 49ers on what draft picks would be required to trigger a trade. If the Eagles are willing to give up a first-round draft choice (28th overall) - which is considered a long shot - they would have the inside track for Owens. The Ravens don't have a pick in the first round because they traded up last year to draft quarterback Kyle Boller. But if Philadelphia wants to hold onto its first-rounder, the Ravens would have the edge since they could offer a second-round selection (51st overall) that is seven spots higher than the Eagles' pick (58th). Meanwhile, the Ravens initiated contact with receiver Darrell Jackson on the first day of free agency. Jackson had 68 catches for 1,137 yards and nine touchdowns for the Seattle Seahawks last season. No visit with the Ravens has been scheduled. Trading for Owens probably would be less costly than signing Jackson because Owens isn't a free agent and can't command a signing bonus. In fact, the Ravens probably wouldn't have gone after Owens if he successfully reached the free-agent market because of his asking price.