Charlotte:Spain's Sergio Garcia mastered perplexing windy conditions to card a second round one-under-par 71 and retain his two-shot advantage at the Wachovia Championship in Charlotte, North Carolina. India's Arjun Atwal landed an eagle on the par-5 15th which allowed him to claw his way back inside the cut. However, Daniel Chopra collapsed in the later stages of the round as he went eight-over on his last 11 holes, to crash out of the championship. Garcia moved to seven-under 137 through 36 holes, a couple of shots ahead of three players, including world number two Vijay Singh. Back in action for the first time since winning the US Masters last month, Tiger Woods mixed five birdies with five bogeys for a level par round that left him five shots off the lead on two-under 142.