Chelsea and Manchester City have already made an initial offer to sign Robert Lewandowski from Bayern Munich, according to reports in Poland.
The 29-year-old will certainly be one of the most-wanted strikers during this summer's transfer window.
Recent reports have claimed that the Blues are leading the race to sign the striker, who scored more than 150 goals for Bayern Munich.
The Blues have struggled in the offensive department this season with Alvaro Morata failing to make an impact in England and Michy Batshuayi leaving the club to join Borussia Dortmund.
Former Arsenal man Olivier Giroud enjoyed a very positive spell since moving from the Emirates but the club is in desperate need of a prolific striker ahead of next season.
Lewandowski will be one of the star players during this summer's World Cup Finals in Russia.