Add David Nelson and Donald Jones to your fantasy cheat sheets. And scratch Torrey Smith off of them.

The Baltimore Ravens have acquired Lee Evans from the Buffalo Bills, according to ESPN’s Adam Schefter. In exchange for their No. 2 receiver, the Bills get a fourth-round pick, according to ESPN’s Chris Mortensen.

Baltimore lost Derrick Mason, Donte Stallworth and Todd Heap in free agency and swung and missed in an attempt to land Malcom Floyd earlier this month. That left with the team with no experienced receivers beyond Anquan Boldin, a problem the franchise has probably become very used to over the years.

Evans immediately supplants 2011 second-round pick Torrey Smith as the team’s No. 2 receiver. Unsurprisingly, Smith was struggling to get acclimated in Baltimore and had a rough outing in the preseason opener Thursday night.

That performance might have encouraged Ozzie Newsome to pull the trigger to acquire Evans, who is better than anyone left on the free agent market (aside from maybe Mark Clayton and Terrell Owens, both of whom are battling back from injuries that probably scared the Ravens away).

Evans doesn’t solve Baltimore’s receiving problems. His numbers have dropped steadily in recent years despite him being one of the only proven options in the Buffalo offense. But the former first-round pick is at least an upgrade, and at 30, there’s still time for Evans to turn his career around.

In Baltimore, where he’ll have a better quarterback, a better No. 1 receiver to attract attention and a better running game, Evans might experience that career boost.

Ravens fans had better hope so, because beyond Boldin and Evans, there are only two receivers on the roster who have a single career reception.