CSKA Moscow coach Zico says the task of replacing Chelsea-bound wide-man Yuri Zhirkov will be on a par with AC Milan and Manchester United having to fill the voids left by Kaka and Cristiano Ronaldo respectively.
The 25-year-old, dubbed the 'Russian Ronaldinho' is reportedly due to arrive in London this week to seal a four-year deal with the Stamford Bridge outfit, with both Arsenal and Liverpool linked with the player in the past.
And former Brazil great Zico - who scored 52 international goals in just 72 outings for his country from 1976-88 - says it will be an impossible task attempting to replace the left-sided Russian international.
"Currently in football there is no player who is able to replace Zhirkov," he told Sport Express.
“Zhirkov to CSKA is like Cristiano Ronaldo to Manchester United or Kaka to AC Milan.
"As we know, both players moved to Real Madrid and I think their former clubs will be seriously concerned about how they will do in the future without their star players.
"Remember how Manchester looked last season when Cristiano Ronaldo was missing. The attack of the team looked much weaker."
NEWS: Chelsea set to seal Zhirkov deal NEWS: Chelsea step up Zhirkov interest NEWS: Zhirkov: I want to sign for Barcelona NEWS: Zhirkov: I know nothing of Chelsea deal NEWS: Chelsea closing in on Zhirkov NEWS: Arshavin - Arsenal should sign Russian Ronaldinhocomments