SFR vs stellar mass diagram for the LoTSS-MaNGA sample. The background grayscale density map shows the bimodal distribution of the star formation main sequence (SFMS) and the quenched population. Radio AGN are plotted as red stars while galaxies without confirmed radio excess (non-RDAGN) are plotted as blue (detection) and green (nondetection) dots. The black solid line is the SFMS. Galaxies below the 3σ_SFMS lower limit of the SFMS (black dashed line) are considered as quenched. Radio AGN host galaxies are dominated by massive and quenched populations. The upper panel shows the fraction of radio AGN in all quenched galaxies. The fraction increases with stellar mass to > 50% at the high-mass end (10^11.5 M_⊙).