Reginald Martinez Jackson (born May 18, 1946) is an American former professional baseball right fielder who played 21 seasons for the Kansas City / Oakland Athletics, Baltimore Orioles, New York Yankees, and California Angels of Major League Baseball (MLB). Jackson was inducted into the National Baseball Hall of Fame in 1993. Jackson was nicknamed "Mr. October" for his clutch hitting in the postseason with the Athletics and the Yankees. He helped Oakland win five consecutive American League West divisional pennants, three consecutive American League pennants and three consecutive World Series titles, from 1972 to 1974. Jackson helped New York win four American League East divisional pennants, three American League pennants and two consecutive World Series titles, from 1977 to 1981. He also helped the California Angels win two AL West divisional pennants in 1982 and 1986. Jackson hit three consecutive home runs at Yankee Stadium in the clinching game six of the 1977 World Series.Jackson hit 563 career home runs and was an American League (AL) All-Star for 14 seasons. He won two Silver Slugger Awards, the AL Most Valuable Player (MVP) Award in 1973, two World Series MVP Awards, and the Babe Ruth Award in 1977. The Yankees and Athletics retired his team uniform number in 1993 and 2004. Jackson currently serves as a special advisor to the Yankees.Jackson led his teams to first place ten times over his 21 year career.