(Reuters) – American artistic swimmer Anita Alvarez was in danger of drowning after losing consciousness in the pool at the world championships in Budapest on Wednesday before being rescued by her coach Andrea Fuentes. Spaniard Fuentes, a four-time Olympic medallist in synchronised swimming, jumped into the pool after she saw Alvarez sink to the bottom at the end of her solo free final routine. She was given medical attention beside the pool before being taken away on a stretcher. It was the second time Fuentes has had to rescue Alvarez after she leapt into the pool during an Olympic qualifica…