The Indian wrestling squad was scheduled to train in Las Vegas from August 16 ahead of the World Championships staring there on September 7. But delay in getting visas has robbed the team of vital preparation time ahead of the meet which will have Olympic berths on offer.The grapplers heaved a sigh of relief when the US Embassy finally issued them visas on Monday, but a few support staff still need clearance. The contingent is hoping to leave on Tuesday.Yogeshwar Dutt, who is yet to win a medal at the world championships, said the delay will give them less time to acclimatise.Also read: Sports Ministry announces names for Dronacharya Awards “According to the earlier schedule, we had 10-12 days to prepare and get used to the conditions. It takes time to adjust at a new place and now we will be left with only five or six days to reset our body clock accordingly. But our preparation is good and we will give our best,” Yogeshwar told Mail Today.The seasoned wrestler injured his knee a few days ago but said he has recovered.”I was having trouble in my knee. Injuries have been a constant problem for me. I went to Mumbai for two weeks to get treatment and am feeling better now,” he said.A medal at the world championships is something Yogeshwar still craves for.”I have won a medal at every international event, from Olympics to Asian Games and Commonwealth Games. But a gold at the world championships is missing from my kitty. I hope to return with one this time and qualify for the Rio Olympics too.”advertisementThe world championships will be the first of four qualifying events for the Olympics. It will offer a maximum of eight berths in one category but will also throw the toughest challenges.”All the top wrestlers will be there and everyone will like to qualify for Rio at the first attempt. If I can qualify from the Worlds, it will give me one year to prepare for the Olympics. It will not be easy and I have to take one bout at a time,” Yogeshwar said.But he backs his ability to win a gold medal after making a smooth transition to the 65kg category last year, in which he has won gold medals at the Asian Games, Commonwealth Games and an international wrestling tournament in Italy.Chief coach Kuleep Malik expects at least three freestyle wrestlers to qualify for the Rio Olympics.”The delay in reaching Las Vegas will affect the chances because we will hardly get time to train and acclimatise. But I am hoping Yogeshwar, Amit Kumar and Narsingh Yadav will make the cut,” he said.