Colour-composite images of the tailed radio galaxies T1 (top) and T2 (bottom) embedded in the ICM of Abell 2142, as per Fig. 1. Contours denote the radio surface brightness measured by LOFAR at 143 MHz as per Fig. 2. Cyan markers point to the host galaxies. Yellow curves indicate the direction of further faint ultra-steep spectrum emission that is only partially recovered at this resolution, which likely traces ancient fossil plasma from these radio galaxies.