JERSEY FOR TIMMY X/@NBA
Timothée Chalamet might be a "Complete Unknown" in theaters ... but he certainly wasn't one at the Knicks game Monday -- 'cause Karl-Anthony Towns took some time out of his postgame routine to gift him a jersey!!
The cool scene all unfolded just after KAT and New York beat up the Memphis Grizzlies at Madison Square Garden.
The 29-year-old center walked over to the actor -- who had some sweet courtside seats for the contest -- stripped off his top, signed it and handed it over.