He will be playing the tournament with the 15-year-old son of Payne Stewart.
'It struck me that Aaron would be playing with his dad if Payne were still alive,'' Janzen said. 'I thought he was missing out on something special. So I called my manager about playing with Aaron.''
Stewart, a three-time major champion, died Oct. 25, 1999, when his plane flew uncontrolled across the country before crashing in a South Dakota field.
Janzen and Stewart were close friends, and Stewart was the runner-up both times Janzen won the U.S. Open.
The Father-Son Challenge will be played Dec. 2-5 at ChampionsGate in Orlando.
Copyright 2004 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.