  We show that in sudden hadronization of QGP a non-equilibrium value of the
pion phase space occupancy parameter gamma_q>1 is expected in order to
accommodate the entropy excess in QGP and the process of gluon fragmentation.
When gamma_q is near to its maximum allowed value, pion overabundance is shown
to arise at low $m_\bot$, where the charged pion asymmetry is also amplified.
These effects are considered and we show that their magnitude suffices to
explain pertinent experimental data obtained in 160-200AGeV Pb- and S- induced
reactions.
