NY Giants rookie Deandre Baker just scored his first touchdown as a pro ... he bought his mom a new Bentley with his newfound NFL money -- AND SHE LOVED IT!!!!
Mama Baker had been driving around in a Nissan ... but when Deandre showed up with the new white whip and a big bow Wednesday -- she started bawling.
You can see in the clip she's shocked ... and the new Giants defensive back has to tell her repeatedly to "stop crying!"
"I Told Mama We Straight..." Deandre said of the gift .