Conversation so far:
Did Phil play golf in college?
Mickelson attended Arizona State University in Tempe on a golf scholarship and became the face of amateur golf in the United States.
Did Phil win any championships while he was in college?
capturing three NCAA individual championships and three Haskins Awards (1990, 1991, 1992) as the outstanding collegiate golfer.

Question: Did he play professionaly after college?
Self-contained rewrite: Did Phil Mickelson play professionaly after college?