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FROM TMZ's reporting... 


Looks like the Redskins are serious about DeSean Jackson -- 'cause TMZ Sports has learned the WR hung out with RG3 in L.A. this weekend BEFORE he got on a plane to meet with the team in D.C. 


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Sources tell us ... DJ and Redskins quarterback Robert Griffin III "spent several hours" together in Los Angeles -- apparently things went well. 

Jackson is now on a plane destined for D.C. -- where he's reportedly set to meet with team honchos. 

Despite all the drama surrounding his release from the Eagles, we're told DeSean has been laser-focused on football -- and has been training like a maniac.  

There are several teams that have reportedly expressed interest in Jackson -- but with the meeting between RG3 and DJ, it looks like the Redskins could have an edge. 

Stay tuned ...