Result: Roberto Castro, Jordan Spieth lead at AT&T National

Result: Castro, Spieth lead at AT&T National
© AP Photos
Jordan Spieth and Roberto Castro hold the clubhouse lead at the AT&T National, which was delayed by three hours due to a thunderstorm.

Roberto Castro has maintained his lead at the AT&T National at Congressional, but he has been joined at the top of the leaderboard by youngster Jordan Spieth.

Castro consolidated his opening-round 66 with a solid second attempt of 69, but he was joined by 19-year-old Spieth.

Spieth is competing in just his 22nd PGA Tour event, but he remained composed to record a 66.

Almost half of the field have yet to complete their second round due to a three-hour delay for a thunderstorm, with Andres Romero still having five holes to play after moving into a share of third place.

Cameron Tringale and James Driscoll are on four-under-par, while Bill Haas and Nick Watney look threatening on three-under, with over half of their second round still to play.

Roberto Castro in action at the AT&T International on June 28, 2013
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