Scott was among five players from the top 64 in the world ranking who are skipping the World Golf Championships event. The others are Henrik Stenson, Justin Rose, Rickie Fowler and U.S. Open champion Brooks Koepka, who is recovering from a wrist injury.
The tournament starts Wednesday at Austin Country Club. Defending champion Dustin Johnson is the No. 1 seed for the second straight year.
The world ranking after this week determines the seeds. The draw Monday will assign players into 16 four-man groups for round-robin play.
Stenson, Rose and Fowler plan to play the Houston Open the following week. Stenson is missing his second World Golf Championship this month.