(Repeats to fix headline) July 2 (Reuters) - Suzann Pettersen delivered the round of the day with an eight-under-par 64 on Friday that tied her for the second-round lead with Brooke Henderson and set up a duel between past champions at the Cambia Portland Classic. "You still have to go out and execute, no matter how much you like the course." World number two Henderson teed off in the afternoon and began her day trailing Pettersen by four, but shot a 68 to pull even. Colombian Mariajo Uribe shot a 65 for the second straight day to reach 10-under-par. More...