Celtics players used to call Rondo Monica. Is there a backstory to this nickname

Rondo willingly picks up Durant to guard and strips him to seal the game

Ja Morant explodes for the dunk!

Dennis Schroder saves the ball to Al Horford by accident but makes up for it on the other end immediately

Rajon Rondo gets ejected after staring down Bill Kennedy in matchup vs Celtics