EXCLUSIVE

LaDainian Tomlinson says Saquon Barkley is basically L.T. 2.0 -- but tells TMZ Sports that ain't enough for him to go #1 in the NFL draft.

We asked LaDainian about all the Saquon comparisons people have been making when we got the Chargers legend at LAX ... and he couldn't agree more.

"He’s a little bit bigger than I am -- but they’re awesome comparisons," L.T. said.

"The lateral movement, quickness, the power, he can catch the ball ... all that stuff."

But even with all that talent, L.T. told us there's a good reason the Browns won't take him with the first overall pick ... and he says that's GREAT news for the Giants at #2.

LaDainian also gave Saquon 1 piece of advice for his NFL career -- and we hope he takes it.