  We propose a mechanism which could explain a slight excess of top signal rate
recently reported by CDF in the framework of the supersymmetric standard model.
If the scalar partner of the top (stop) is sufficiently light, the gluino with
an appropriate mass could decay into the stop plus the top with almost 100\%
branching ratio and experimental signatures of the gluino pair production could
be indistinguishable from those of the top production in the present integrated
luminosity Tevatron running. In this case the standard top signal, $W$ $+$
multi-jets events, would be effectively enhanced by the additional gluino
contribution. It is shown, moreover, that such a mechanism can actually work in
the radiative SU(2)$\times$U(1) breaking model without the GUT relations
between the gaugino mass parameters.
