His mother is not Jewish and he plays sport on sabbath days - do Orthodox Jews do this? He is not of the halakah definition. Is he of a Reform Synagogue and seen as Jewish by those in his community? Personally I think anyone with a Jewish grandparent should qualify (the law of retrun standard) especially when they are of Jewish community - either Israeli or a synagogue.
Israeli soldier collapses, dies from heatstroke during visit to Jerusalem's Old City (Haaretz)
from the article: Jewish outfielder Ryan Braun named U.S. National League MVP