Rising Indian golfer Shubhankar Sharma savoured a dream debut at the World Golf Championships-Mexico Championship as he fired a sizzling six-under 65 to grab the tied second place after the opening round here. Sharma, 21, playing in the last group alongside Malaysia's Gavin Green, was beaming from ear to ear after keeping the bogeys of the card which included an eagle and four birdies at the Club Golf de Chapultepec. He is now one shot behind leader Louis Oosthuizen.