In a pro career that spanned nearly 20 years, defenceman Ralph Keller played only three games for the New York Rangers in 1962-63. He was a stalwart in the WHL where he spent parts of eight seasons and the AHL in which in tenure lasted over a decade.
Keller was first noticed while playing with the Prince Albert Mintos of the SJHL. He played his first WHL game with the Saskatoon Quakers in 1954-55 but his career in that circuit reached its zenith with the Vancouver Canucks several years later. He became a dominant force, often controlling the tempo of the game. Keller was placed on the WHL second all-star team in 1960 and the first all-star squad the next year.
In 1962-63 Keller scored a goal during his three games with the Rangers before heading to the AHL. He began with the Baltimore Clippers but settled down with the Hershey Bears. Keller became a popular figure in Hershey with his robust play and occasional offence. He was a key member of the team's Calder Cup triumph in 1969 and was on hand for one last championship in his final season in 1973-74. Along the way he exceeded 100 minutes in penalties seven times, hit double figures in goals scored on four occasions, and was named to the AHL's first all-star team in 1971. On February 21, 1971, Keller broke Hy Buller's AHL record for defenceman by scoring his 81st career goal in the league.