An emotional Scott Verplank claimed this title last year. Verplank grew up in nearby Dallas and got to know the tournament's namesake, Byron Nelson, as a teenager.
Last year's event was the first without Nelson, who passed away in September 2006. He missed Verplank post three straight birdies and a great par save on the 17th to secure the late lead.
Verplank tapped in a short par putt at the last to secure his fifth PGA TOUR title and first since 2001.
New Masters champion Trevor Immelman returns to play for first the first time since earning his first major championship crown.
The last several years this event was played over two courses, the TPC at Las Colinas and Cottonwood Valley Courses. Cottonwood has been removed from the rotation and newly renovated TPC Four Seasons Resort Las Colinas will host all four rounds.
The Four Seasons course has been played since 1983. This will be the first year since 1993 that the tournament will be contested on one course.
The GOLF CHANNEL has three hours of action the first two days, then CBS will cover three hours worth of action on the weekend.
The PGA TOUR heads to North Carolina next week for the Wachovia Championship, where it will be without defending champion Tiger Woods, who is recovering from recent knee surgery.