Table:
text: Roberto Clemente Award
Winners
Winners
Year_ Player Team League Position_
1971 Willie Mays Category:Articles with hCards † San Francisco Giants National Outfielder
1972 Brooks Robinson Category:Articles with hCards † Baltimore Orioles American Third baseman
1973 Al Kaline Category:Articles with hCards † Detroit Tigers American Outfielder
1974 Willie Stargell Category:Articles with hCards † Pittsburgh Pirates National Outfielder
1975 Lou Brock Category:Articles with hCards † St. Louis Cardinals National Outfielder
1976 Pete Rose Category:Articles with hCards Cincinnati Reds National Third baseman
1977 Rod Carew Category:Articles with hCards † Minnesota Twins American First baseman
1978 Greg Luzinski Category:Articles with hCards Philadelphia Phillies National Outfielder

Question: What is the pre-1973 third baseman league for the Roberto Clemente Award?