D'Angelo Russell Reconciles with GF

D'Angelo Russell is BACK ON with his college athlete girlfriend ... the two have reconciled after breaking up earlier this month, TMZ Sports has learned.

The Lakers star had been dating USC volleyball star Niki Withers -- but sources close to the couple tell us they broke things off after a recent trip to Asia because they felt they were growing apart.

But after nearly two weeks ... the two decided to go out for dinner to talk things out and agreed to give it another shot.

And perhaps the most meaningful sign ... they both reposted pictures of each other back to Instagram after scrubbing all traces right after the breakup.

At the end of the day, both Russell and Withers are 20-years-old -- and we're told they want to take things slow and see where things go.

#GoodLuck