Lonzo Ball Pleads With Malik Monk To Change Number So LaMelo Can Have #1

Lonzo Ball is stepping up as big brother to help LaMelo get his beloved jersey number ... hitting up Malik Monk and asking if he's down to swap digits!!

Of course, #1 has ALWAYS been Melo's number -- from high school to Lithuania to Australia -- and the dude even has a massive tattoo to prove his loyalty to numero uno.

But, the youngest Ball Bro hit a snag after getting drafted by the Charlotte Hornets on Wednesday ... 'cause Monk currently has ownership over #1.

Melo was introduced to the Hornets with a #2 jersey on Friday ... and Zo, who also wears #2 on the Pelicans, immediately went to work on getting lil bro his #1.

"Ayo @AhmadMonk what’s good?! You know you want 5!! 🤣 ", Lonzo tweeted at Melo's teammate.

The question is, is Zo doing this out of brotherly love ... or does he REALLY not want baby bro to have the same number as him??

Most likely the latter ... but either way, Monk would have to pick something other than #5 -- that currently belongs to Nicolas Batum.