China's Xie Wenjun wins the men's 110m hurdles with Jamaica's Omar McLeod third in London, England, July 21, 2019. [Photo/Agency] DOHA - Chinese hurdler Xie Wenjun has been given a boost after a successful season in 2019 and will be looking to finally break through in Doha to reach the 110m hurdles final in his fourth IAAF World Championships.   "I don't have any pressure now. This will be my fourth world championship. I hope to have a breakthrough this year," Xie said after training at the Khalifa International Stadium on Wednesday.   "I love this stadium. I love the track and the atmosphere. I'm very excited."   Xie, who first reached the world championships in 2013, has high hopes that he will follow in the footsteps of fellow Shanghai native Liu Xiang, a Chinese hurdler who became a national icon after winning gold at the 2004 Olympics and became world champion in 2007.   However, Xie had participated in the first three editions of the biennial competition but never made it to the finals as he was kicked off in the preliminary round in Moscow and eliminated in the semi-finals in Beijing and London respectively.   The 29-year-old has been enjoying the second step of his career since starting training under current coach Rana Reider last winter. He improved his personal best to 13.17 seconds twice this year and qualified for the IAAF Diamond League finals for the first time.   Although he only finished fifth in the Brussels Diamond League final earlier this month and sprained his ankle during the game, Xie believes he has fully recovered from the injury and is ready to make history in Doha.