|Byron Nelson first round leaderboard|
|-7 D Lee (NZ), S Garcia (Spa), J Wagner (US); -6 D Johnson (US), F Jacobson (Swe), T Hoge (US)|
|Selected others:-5 M Kuchar (US); -3 G Owens, I Poulter (Eng)|
Jordan Spieth shot a six-under-par 64 to sit one behind joint first-round leaders Danny Lee, Sergio Garcia and Johnson Wagner at the Byron Nelson.
Dustin Johnson, Freddie Jacobson and Tom Hoge are also tied for second at the four-round event in Texas.
England's Greg Owens and Ian Poulter are joint 28th on three under par.
The 22-year-old Texan, who won the US Open and the Masters last year, said: "I lost a little control with my iron play on some pretty easy shots that I will look to improve on but other than that I'm pretty pleased."
Spieth made his PGA Tour debut at the 2010 Byron Nelson, finishing tied for 16th aged 16.
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