A standout in both baseball and basketball for the UD Blue Hens, Green (Delaware '56) followed with a 13-year major league baseball career and even more success as a big league manager.  At Delaware, Green posted a pitching record of 6-0 with a school record 0.88 ERA in 1955.

He received UD's highest honor, the Medal of Distinction, in 1992 and was inducted into the statewide Delaware Sports Hall of Fame in 1983 and Delaware Baseball Hall of Fame in 1994.