  The interference of Pomeron and Odderon amplitudes gives rise to a charge
asymmetry in the diffractive electroproduction of a pi+pi- -pair. We calculate
this charge asymmetry in perturbative QCD in the Born approximation and on the
leading Q^2-level. The numerical evaluation shows a sizeable asymmetry in an
experimentally accessible kinematical region. We find a characteristic
m_{pi+pi} -dependence mainly dictated by the relevant Breit-Wigner-amplitudes
and the corresponding phase-shifts.
