Despite the indispensable contribution of crystallization to the final properties of poly(lactic acid) (PLA), the combined effect of steady shear and nanofiller(s) remains mostly unsettled. This work employed a combination of steady shear and oscillatory rheological measurements to study shear induced nanostructural breakdown and subsequent nanoparticle orientation and overall structural recovery in PLA nanocomposites containing functionalized, single and hybrid carbon nanofillers (fCNTs