In 1976, Bobby Orr became a free agent, with Boston to receive compensation. Orr whittled down a list of potential teams to St. Louis and Chicago. Chicago offered a five-year guaranteed contract with the Black Hawks, and on June 8, 1976, he officially signed with the Black Hawks, but his injuries limited him to only 26 games over the next three seasons. He sat out the entire 1977–78 season. By 1978, Orr had undergone over a dozen knee surgeries, was having trouble walking and barely skated.