  We present the line of sight radial velocity dispersion profile of the
Sextans dwarf spheroidal galaxy (dSph), based on a sample of 88 stars extending
to about 1 degree (about 1.5 kpc). Like the Draco and Ursa Minor dSphs, Sextans
shows some evidence of a fall-off in the velocity dispersion at large projected
radii, with significance p=0.96. Surprisingly, the dispersion at the very
centre of Sextans is close to zero (with significance p=0.96). We present
evidence which suggests that this latter change in the stellar kinematics
coincides with changes in the stellar populations within the dSph. We discuss
possible scenarios which could lead to a kinematically and photometrically
distinct population at the centre of Sextans.
