  From the dynamical twisting of the classical r-matrix, we obtain a new Lax
operator for the elliptic Ruijsenaars-Schneider model (cf. Ruijsenaars'). The
corresponding r-matrix is shown to be the classical $Z_n$-symmetric elliptic
r-matrix, which is the same as that obtained in the study of the
nonrelativistic version---the $A_{n-1}$ Calogero-Moser model.
