 His brother Rolf (b.1946) was also an NFL player with the St. Louis Cardinals and the 49ers, where the two played together in 1972 and 1973.At age 51 in 1988, Krueger was awarded more than $2.3 million in damages stemming from a lawsuit against the San Francisco 49ers.The judge found that Krueger received repeated anesthetic injections during his NFL career so that he could continue to play in spite of significant knee injuries.