。
No baseball figure has been deified to this extent.
Literal
Baseball-person [with-で] this-much deified man [also-も] not-exist.
~ほど...もいない means 'there is no one who has been X to such a degree.' 神格化 (deification/elevation to godlike status) is a powerful Sino-Japanese compound. 野球人 (baseball person/baseball figure) is a specialized compound. The sentence uses a double negative construction to emphasize the uniqueness.