Shohei Ohtani has only been a Dodger for about a week, but he's already getting the superstar treatment in L.A. ... with brand-new murals popping up all over the city!!
TMZ Sports has learned ... famous street artist Jonas Never -- who has done work featuring LeBron James and Anthony Bourdain in the past -- decided to welcome Ohtani to the Dodgers by whipping together a new piece near downtown L.A.
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JN used the Prociety shop as his canvas .