Chelsea are among clubs interested in RB Leipzig forward Christopher Nkunku, who won the Bundesliga Player of the Year.
The 24-year-old is in contract negotiations with the DFB-Pokal winners but the Blues believe they are able to disrupt the talks and take advantage.
Real Madrid are also monitoring the situation, although are reportedly prioritising the signing of Monaco midfielder Aurelien Tchouameni, who is also a Blues target.
They need to sell first with limited minutes given to frontline players Christian Pulisic, Timo Werner and Hakim Ziyech this season leaving them frustrated.
Romelu Lukaku hasn’t hit the heights that many expected despite him ending the season as the club’s top scorer on 15 goals.
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The problem is all four forwards are expensive for buying clubs when transfer fees and wages are considered, leaving only big English clubs and top Champions League sides able to buy them.
Borussia Dortmund have been interested in signing Werner but appear to have gone cold on a deal over cost.
Currently, the Germany international is the Blues’s fourth-highest paid player on around £275,000-a-week.
The Blues are able to cash in on Armando Broja, who is a hot asset targeted by West Ham, Newcastle, Southampton, Inter, AC Milan and Napoli.
The 20-year-old is seen as an exciting prospect and £25m ($31m) could start the conversation over a possible transfer. However, Thomas Tuchel is currently wanting to see the Albania international in pre-season before making such a decision.
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The situation around signing an attacker could change quickly with Robert Lewandowski admired at Stamford Bridge. In recent days, Paris Saint-Germain have also communicated their openness to selling Neymar.