Anthony Davis -- Tallest Sushi Chef Ever ... for New Commercial

Eyebrows and sushi don't sound like an appealing combination, but they came together splendidly when Anthony Davis (aka The Brow) shot a commercial for Boost Mobile ... as a sushi chef.

The three-hour shoot went down Monday in Santa Clarita, CA ... and sources on the set tell TMZ Sports he more than held his own. We're told Davis nailed all his lines ... even the ones in Japanese.

As for the wardrobe, our sources say the 6'10" Pelicans star is so big, they had to have the chef's outfit custom made for him.