Bayern Munich's Robert Lewandowski is reportedly on Chelsea' shopping list this summer, as well as Borussia Dortmund youngster Alexander Isak.
According to the Daily Mirror, contact has been made between the Blues and Lewandowski's representatives, ahead of a big summer of change at Bayern.
Lewandowski will turn 31 in August, which could put off the Blues if younger targets are available, but the Pole has scored 186 goals in 234 appearances since joining Bayern in 2014.
Chelsea will desperately need a proven new frontman this summer with Eden Hazard expected to leave for Real Madrid, Alvaro Morata out on loan at Atletico Madrid and Olivier Giroud keen to depart Stamford Bridge.
The same report claim that Chelsea are also tracking Borussia Dortmund's 19-year-old striker Alexander Isak, who has scored 11 games in 11 Eredivisie goals on loan at Willem II this term.
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The Blues are appealing a two-window transfer ban handed out to them by FIFA for breaking rules concerning the signing of minors, and their case will be dealt with by the Court of Arbitration for Sport later in April.
This article was most recently revised and updated 3 years ago