According to reports, the Blues are believed to be weighing up the idea of offering their out-of-favour striker Abraham, plus cash, in a deal for Haaland.
However, Tuchel has lacked an out-and-out striker and multiple reports suggest that signing a new forward this summer is his top priority.
According to Marca, Abramovich is expected to back Tuchel and it appears even more likely as though he's ready to make a teasing offer to sign Haaland.
But if Dortmund reject the Abraham-plus-cash deal to sign Haaland - widely regarded as one of the best strikers in the world right now - then at least £154.5m will have to suffice.
That is the fee said to be the price Dortmund have demanded should any team try and prise the 20-year-old away this summer.
It's been reported that Haaland's release clause, which becomes active in 2022, is in the region of £68m.
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