The Ravens started the season with 6 receivers on the opening day roster, and 3 are done for the season (Steve Smith, Campanaro, Waller) and another has yet to play a snap. This leaves Kamar Aiken and Marlon Brown, plus trade acquistion Chris Givens, and former practice squad call-ups Jeremy Butler and Jeremy Ross as the active wide receivers.
While Givens and Aiken have had their moments this year, Brown has been near invisible, Ross has been solid in a limited role, and Butler has not gotten a chance yet and is completely unproven.
Given the lack of experience, the Ravens are looking to add a receiver to the mix. The Ravens have a bye this week, so that would give them extra time to work in the new receiver.
<blockquote class="twitter-tweet" lang="en"><p lang="en" dir="ltr">Ravens will have a WR workout this week. Hakeem Nicks and others will take part. Haven't heard that Wes Welker will be part of that group.</p>— Jeff Zrebiec (@jeffzrebiecsun) <a href="https://twitter.com/jeffzrebiecsun/status/661349605553098752">November 3, 2015</a></blockquote>
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Nicks is the only name we have seen mentioned anywhere, but the former Giant has bounced around the past few years. Only 27, he experienced a large drop-off in production in what was looking like a promising career, and has not looked the same since then. His last good year was in 2011, and he has battled injuries since.