Karrueche Tran new boyfriend, dating NBA star Brandon Jennings after Chris Brown break-up? No Rihanna drama, cheating ignites split?

Rumors suggest that almost immediately getting out of rehab, Chris Brown broke-up with girlfriend Karrueche Tran.

And apparently, he did NOT dump the stunning model in order to get back together with ex-lover Rihanna. In fact, Tran was allegedly the one creeping around behind Breezy's back!

According to the infamous gossip webloid MediaTakeOut.com, Tran's been "romancing" NBA star, Brandon Jennings for months.

And the popular Detroit Pistons baller finally ousted their blossoming relationship on Twitter, by referring to Tran as "Annie" (slang for girlfriend).

However, Jennings never actually mentions Brown's ex by name... so where the connection actually lies, who knows:

@BrandonJennings: "Hi Annie!!!!"

@BrandonJennings: "Shout out to all the Annie's. I appreciate you."

‏@BrandonJennings: "'@BabyOcho_: @BrandonJennings what's a Annie bruh?' Hmmmm Annie is someone you Wife."

Rumors initially suggested that Jennings was dating rapper Bow Wow's ex, Angela Simmons.

Meanwhile, Tran remains silent on all the dating drama, although MTO "snitches" confirm that she IS hooking-up with the NBA superstar.