Jhonattan Vegas posted a 4-under-par 34-34=68 in his opening round of the Valero Texas Open, finishing one stroke back of the clubhouse lead.
The rookie hit 14 greens and circled five birdies, including conversions of 19'10", 40'11" and 10'4" at the 11th, 14th and 18th holes, respectively. He also saved par from 10'2" at the 13th.











