LeBron James admits he's "disappointed" the Lakers didn't reunite him with his old teammate Kyrie Irving ... saying Monday he thought a trade for the point guard could have given him the chance to win multiple championships in L.A. LBJ sat down for an interview with ESPN's Michael Wilbon ... and…

The NBA's 1-and-done rule is "complicated" and objectionable" and has got to go ... so says ESPN star Michael Wilbon -- but he definitely stopped short of calling it "racist." We got the "Pardon The Interruption" host leaving Craig's in L.A. -- and asked him about Stan Van Gundy's recent comments…