Mickelson headlined a wave of official commits for the event, played March 26-29 at TPC San Antonio. Last year marked his first appearance at the tournament since 1992, but he withdrew during the middle of his third round because of a pulled muscle. Mickelson is in the field this week at the Honda Classic, and the announcement means the southpaw will likely play four of the next six weeks leading up to the Masters.
The tournament also announced the addition of Jordan Spieth, who will be playing for the fourth straight year, along with Jason Dufner and U.S. Open champ Martin Kaymer, who will be making his first trip to the AT&T Oaks Course.
While the event has occupied a difficult spot on the schedule in recent years, sandwiched between the Florida swing and the season's first major, the field this year will include 12 players currently among the top 30 in the world rankings. In addition to those announced Wednesday, the tournament already had commitments from Jim Furyk, Jimmy Walker, Matt Kuchar, Graeme McDowell, Zach Johnson and Billy Horschel.