ANATHEMATIZING THE GURALNIK-MANOHAR BOUND FOR (LAMBDA)OVER-BAR

There is a recent claim by Guralnik and Manohar [Phys. Lett. B 302 (1993) 103] to have established a rigorous lower bound on ($) over bar A, the asymptotic difference between the mass of a heavy flavour hadron and that of the heavy flavour quark. We point out the flaw in their reasoning and discuss the underlying physical problem. An explicit counterexample to the GM bound is given; therefore, one cannot count on a refined proof to re-establish this bound.