Top: evolution of stellar radii for the 2 M_⊙ models. Continuous and dotted lines correspond to stars with initial velocities Ω_ini/ Ω_crit = 0.1 and 0.5, respectively. Time 0 corresponds to the end of the MS phase. Centre: evolution of the total mass of the star (upper red lines) and of the masses of the convective envelopes (lower blue curves) for the same stars as in the top panel. Bottom: radii at the bottom of the convective envelopes for the same stars as in the top panel.