Chelsea chief Marina Granovskaia will reportedly no longer splash the cash without any repercussions coming down on the current squad because the money received for Eden Hazard has all been used.
Chelsea acted decisively in the market spending over £80million on Ajax ace Hakim Ziyech and RB Leipzig striker Timo Werner.
That cash was left over from Real Madrid’s purchase of Hazard at the start of the season, according to the Athletic.
The report adds that Granovskaia will only sanction more purchases if they can be balanced with player sales.
Frank Lampard must decide which of his current crop he wants to offload in order to complete his squad overhaul.
The Blues are thought to be in advanced negotiations with Leverkusen to take Havertz to Stamford Bridge.
A valuation of £90m was given initially but Chelsea are hoping that fee can be reduced after the player made his desire to leave known to club bosses.
Lampard also wants to add another left-back and centre-half to his ranks ahead of the 2020/21 campaign.
But that will have to be met with a series of player sales and Granovskaia will not hand the head coach an open cheque book.
Chelsea will have a plethora of attacking options next year with the addition of Werner and Ziyech.
“But he’s also good in the middle and he’s good on the right, too.
“I think if you’re playing with two strikers, which is what we did often at Leipzig, we gave them freedom to move to the left.
“We built that in tactically so he could find ways to be on the move but dangerous.
“But he could play as a second striker, he could play on the right, he can play in a front three, he can play any of those positions.”