He's killing it in the D-League ... but Jimmer Fredette might not stick around to see if the NBA calls him up again ... telling TMZ Sports he's considering taking his talents overseas.
27-year-old Fredette -- the 10th overall pick in the 2011 NBA Draft -- didn't blossom into a superstar right away ... and was sent down to the D-League to polish his skills.
Jimmer is flourishing with the NY Knicks D-League squad -- he was the MVP of the 2016 D-League All Star game.
So, when we saw him out in NYC today we had to ask .