Chelsea are close to securing a deal for Timo Werner from RB Leipzig.
They are also close to securing a deal for Ben Chilwell, per Goal.
The source claims that if these two deals are pushed over the line in the coming weeks, the transfer budget will be close to wiped out.
But manager Frank Lampard will pursue other targets through cheaper deals, swaps and loans.
Werner and Chilwell would be joined by Hakim Ziyech, whose transfer from Ajax was confirmed in February.
The club may also look to sell several first team players to bring in funds and lower their wage bill.