"We met all day yesterday with him and had him out here on the field going over stuff," Raiders coach Lane Kiffin said. "We need to get him ready because we don't have another choice. We're the only team of 32 teams in the league that only has four receivers on their (roster), so we don't have a choice."
Tim Dwight originally worked out for the Raiders two weeks ago but left town without getting a contract offer.
But after receiving a phone call from the team brass, Dwight boarded a plane Monday night and headed for Oakland.
"It was a good fit, coming in and see how they need a small receiver in the slot (and) maybe some punt returns," Dwight said. "I'm working every day to try and catch up. I'd like to come in and definitely make plays and that's why I'm here."
Dwight caught just 16 passes for 112 yards for the New York Jets in 2006 before a foot injury prematurely ended his season and landed him on injured reserve. He was released by the team in the offseason and visited several other NFL squads before coming to Oakland.
The 5-foot-8, 180-pound Dwight has 188 career receptions for 2,866 yards and 17 touchdowns. He's also scored five touchdowns on punt and kickoff returns.
"He's a very, very fast guy," Raiders quarterback Daunte Culpepper said. "He has the knack for the big play. I've been a fan of his since I've seen him in college, so I like him. I understand he was with (offensive coordinator Greg Knapp) and he understands his offense and he's a smart guy and he plays fast every down. That's what I like about him, he plays fast every down."