By Ruslan Chikov

The trainer of middleweight Sebastian Zbik (30-1, 10KOs), Artur Grigorian, expects a very tough fight when his boxer challenges WBA champion Felix Sturm on April 13th at the Lanxess-Arena in Cologne, Germany.

"I've never seen him look so strong in sparring. We know exactly when and how we can use our strongest weapons. We will show [these things] in the fight. I have great respect for Felix Sturm. He is not only champion, but the super champion. He is always well prepared, flexible, and a very good boxer. Therefore, we must give everything [of ourselves] in training," Grigorian said.

"In boxing you sometimes only get one or two chances [at a title]. But now we can't make any mistakes in training, because we must be particularly strong. There are several variants [for the fight strategy]. I know, as a former boxer, that you have to move very quickly [to change your strategy] if something goes wrong. You must always fight so its harder for your opponent, and not for yourself. Then all is well. We respect what Felix can do, [but for every good fighter there is] always a good answer."