Education
Grottkau attended Oakland High School where he played as a fullback.
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Bob Grottkau
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Career
He played college football at the University of Oregon. He accepted a scholarship from the University of Oregon. As a sophomore he was switched to offensive tackle.
The next year he was moved to guard out of necessity and became a two-year starter.
Detroit Lions
He was selected by the Detroit Lions in the fourth round (46th overall) of the 1959 NFL Draft. On August 21, 1961, he was traded along with rookie Houston Entwine to the Dallas Cowboys in exchange for offensive lineman John Gonzaga.
Dallas Cowboys
In 1961, he was a reserve player. On July 31, 1962, he was waived after being unable to overcome a knee injury.
Grottkau was the offensive line coach at San Jose State University for two years.
In 1971, he was named the offensive coordinator and line coach for the University of Iowa.
