MOSCOW, Jan 3 The current Biathlon World Cup winner Norwegian Tiril Eckhoff said that he will not perform at the fifth stage of the current season, which will be held in Oberhof, Germany, as he wants to recover from an illness. Earlier, Eckhoff finished ahead of schedule at the fourth stage of the World Cup, which was held in December in Annecy, France, due to not being in good shape. » I won't go to Oberhof. I got sick when I came from France and was ill for a week. I did my first hard workout two days ago and then decided I didn't want to rush. I need to get my body in good shape before I return to World Cup «- quoted by Eckhoff TV2.