Lavar Ball says he's definitely open to the idea of teaming with Puma for a Big Baller Brand shoe collab ... saying "the possibilities are unlimited" now that his boys signed with Roc Nation.
"If everything goes right, this thing can be explosive," Ball tells TMZ Sports about joining forces with Jay Z.
As we previously reported, all 3 of LaVar's sons -- LaMelo, LiAngelo and Lonzo -- are signing with Roc Nation to handle "marketing opportunities" off the court ... which includes shoe deals.
And with Jay Z being the creative director for Puma Basketball -- there have been questions about if the boys will jump ship from Big Baller Brand and sign with Hov's company instead.