Olympic gold medallist Jessica Ennis-Hill has confirmed she will return to competition in London this July following her break from athletics to become a mother. Ennis-Hill provided one of London 2012's most captivating storylines by surging to heptathlon gold, and the Sheffield-born star will return to the Olympic Stadium three years on to compete in the Sainsbury's Anniversary Games. The 29-year-old has not competed since the same event in 2013 and gave birth to her son, Reggie, last summer. But her return to action sets up the prospect of a showdown against Katarina Johnson-Thompson, the brilliant young British heptathlete who is the heir to Ennis-Hill's throne. Jessica Ennis-Hill became a national hero when she won heptathlon gold at the London 2012 Olympics . Ennis-Hill has not competed since 2013 as she took time off to become a mother . 'I am really looking forward to it,' said Ennis-Hill, who could compete in the long jump or 110m hurdles. 'My race schedule is starting to starting to take shape and it will be good to compete and get a sense of where I am in my return to competing. 'My main goal this season is to be as competitive as possible with the long-term goal being the Rio Olympics. 'Diamond League meetings always have the best athletes in the world so I’m sure this will be a good test for me; I want to perform well being back on the big stage in London but I will be realistic as 2015 is about the challenge of getting back to competitive shape after having my little boy and ultimately making the necessary progression to be at my best for Rio.' Katarina Johnson-Thompson has emerged as the new rising star of British athletics and Ennis-Hill's heir . Another British hero of London 2012, Mo Farah, will also compete in the Diamond League event, which serves as a warm-up for the World Championships in Beijing in August. Ennis-Hill will take part in the two-day meeting on July 24 and 25, with the Sainsbury's IPC Athletics Grand Prix Final taking place on July 26. Ennis-Hill added: 'The 2012 Olympics were an incredible experience for me and it will be very special to step out on that track again. It will be amazing to compete in front of all our British fans who I am sure will have their own memories of the London Games too.'
Jessica Ennis-Hill will compete at the Anniversary Games in July .
Olympic gold medallist has not been in action since 2013 .
Her return could set up showdown against Katarina Johnson-Thompson .