Chelsea spent more than €100m when landing Romelu Lukaku from Inter Milan to strengthen their strike force this campaign.
The Belgian star has four goals to his name in 10 games in all competitions and has not found the back of the net since mid-September.
Former Italy forward Antonio Cassano has suggested Romelu’s struggles are down to Thomas Tuchel’s system, and the star not fitting into it.
In spite of investing big on the former Everton man, the west London club allegedly continue to look for a new centre-forward.
SportBild explains the UEFA Champions League winners are in the running for Borussia Dortmund star Erling Haaland.
Pep Guardiola’s Manchester City remain the favourites to sign the Norway sensation, but the must not be ignored.
His impressive scoring record will see Erling draw attention from elite European clubs, particularly due to his €75m exit clause, plus bonuses, that will come into effect from next year.
Elsewhere, Chelsea’s Antonio Rudiger has allegedly been left “dissatisfied” that the board have failed to improve on their recent proposal of a new contract.
In spite of his status in Thomas Tuchel’s roster, the 28-year-old star remains with less than nine months remaining on his existing deal.
According to Bild’s Christian Falk, he is disappointed that club senior members haven’t made more of an effort to meet his demands.