Complex sentence: Stokes was Scottish Professional Snooker Champion in 1949,1952 and 1953 he remained undefeated until he relinquished his title to Stephen Hendry in 1985 after suffering a stroke.
Split into simpler sentences: Stokes was Scottish Professional Snooker Champion in 1949,1952 and 1953. He remained undefeated until he relinquished his title to Stephen Hendry in 1985 after suffering a stroke.