Weather has played havoc with the event and Chopra was able to get in only one hole of the third round Saturday. Standing water on the course and continued heavy rains led organizers to cut the tournament to 54 holes.
Chopra is at 13-under after 37 holes and is two strokes ahead of Gregory Bourdy, defending champion Padraig Harrington and James Morrison, who all also played one hole of the third round. They are tied at 11-under.
Five golfers are at 9-under with another six at 8-under.
Chopra, who had an opening round of 7-under 64 and backed that with a 6-under 65 Friday, was up by four strokes when play was stopped because of darkness Friday. But the lead was sliced in half when the rest of the field was able to complete their second rounds Saturday.
Morrison had a second round of 6-under 65, which included three consecutive birdies over Nos. 16-18. Bourdy and Harrington each finished off second-round scores of 67. Bourdy had a string of four consecutive birdies to highlight his round. Harrington overcame a pair of bogeys in his second round.
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