Franklin 1-for-1 at worlds thanks to Romano

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United States's Katie Ledecky looks at her time after finishing a heat of the Women's 400m freestyle at the FINA Swimming World Championships in Barcelona, Spain, Sunday, July 28, 2013. (AP Photo/Michael Sohn)

BARCELONA, Spain (AP) — Missy Franklin has claimed gold in the first of her eight events at the world championships.

She can thank teammate Megan Romano.

Romano chased down the Australians with a powerful anchor leg, leading the United States to gold in the 4x100-meter freestyle relay. Franklin was far behind in second after a blistering start by Cate Campbell, but Natalie Coughlin and Shannon Vreeland chipped away at the deficit before Romano finished the job.

She touched in 3 minutes, 32.43 seconds, edging Alicia Coutts by 0.12. The Netherlands finished another 3 seconds behind for the bronze.

The relay win followed a dominating victory by American teenager Katie Ledecky in the women's 400 freestyle. China's Sun Yang won the first final of the night, also with a runaway win in the men's 400 free.