Rome, February 8 - Italy's world champion swimmer Federica Pellegrini said on Friday that she will move from Verona to Narbonne in September to train with her French coach Phillippe Lucas. The 24-year-old is in the middle of a sort of sabbatical year after failing at the London Olympics last summer, when she she could do no better than fifth in the 200m and 400m freestyle. It was a massive disappointment for an athlete who is the double world champion and world record holder in both events and went to the Games as the reigning Olympic champion in the 200m. "In September I'll move to Narbonne and there I'll set up the three years of work for the Rio 2016 Olympics," Pellegrini told ANSA. Pellegrini returned to Lucas, the former coach of her ex-rival Laure Manaudou, after the Olympics. He also prepared her before the 2011 world championships in Shanghai, where she retained both the titles she won in Rome in 2009 with world record times. But they separated after Shanghai as Pellegrini no longer wanted to live in France to work with Lucas and the coach refused to move to the swimmer's base in Verona. Pellegrini has been limiting the amount of competition she does and the intensity of her training since the London Olympics as part of her bid to regain freshness and enthusiasm for the sport. Her boyfriend Filippo Magnini, the 2005 and 2007 100m freestyle world champion, will also work under Lucas, but he said he will not decide until after this year's world championships whether to move to Narbonne.