He is Jewish, as are his mother and both her parents; he is therefore eligible to play for Team Israel, which has the same requirement as Israel does for automatic Israeli citizenship, that a person have at least one Jewish grandparent.
He is Jewish, as are his mother. He is Jewish, as are both her parents. He is therefore eligible to play for Team Israel as Israel does for automatic Israeli citizenship, that a person have at least one Jewish grandparent. Team Israel has the same requirement.