Roger Federer insists his Wimbledon triumph should serve as a warning to his Olympic rivals that age won’t be a barrier to his dream of winning a gold medal at the All England Club. Federer is back at Wimbledon for the Olympics only three weeks after beating Andy Murray to clinch a record equalling seventh title at the grass-court Grand Slam, but the Swiss star’s thirst for success hasn’t been quenched just yet. After ending his two-year drought at the majors and returning to the top of the world rankings, Federer once again radiates the supreme confidence that characterised his lengthy spell as the sport’s dominant force. He has silenced the critics who claimed the 30-year-old was a fading force who was more focused on his young family than working to combat the twin threat posed by Novak Djokovic and Rafael Nadal.