Chelsea have received a major boost in the battle for RB Leipzig striker Christopher Nkunku.

Claims have emerged this week that Nkunku has agreed personal terms with Chelsea, which had a presence at an insurance medical for the Frenchman over the summer.

Nkunku's contract carries a €60m buyout clause and there's been claims that Bayern Munich would challenge Chelsea for his signing.

However, BILD says the clause is only available to foreign clubs, so leaving Bayern at a major disadvantage.

Nkunku's deal runs to 2026.