  We present the results of theoretical analysis of normal impurities effects
in superconductors with the gap being an odd function of k-k_{F}. This model
proposed by Mila and Abrahams leads to the possibility of pairing in the
presence of arbitrarily strong short-range repulsion between electrons and may
be applied to high-Tc oxides.However, we demonstrate that normal impurities
lead to rather strong suppression of this type of pairing, which is actually
stronger than in the case of magnetic impurities in traditional
superconductors. Relative stability of high-Tc cuprates to disordering makes
this model a rather unlikely candidate for the pairing mechanism in these
systems.
