  The derivation of the `classical' low-energy theorem (LET) for \gamma p
\rightarrow p\pi^0 is re-examined and compared to chiral perturbation theory.
Both results are correct and are not contradictory; they differ because
different expansions of the same quantity are involved. Possible modifications
of the extended partially conserved axial-vector current relation, one of the
starting points in the derivation of the LET, are discussed. An alternate, more
transparent form of the LET is presented.
