Chelsea have already decided on their transfer alternative to Erling Haaland.

The Borussia Dortmund superstar is highly sought after ahead of the summer with the Blues in competition with the likes of Barcelona, Real Madrid, Manchester City and Manchester United for the striker's signature.

With Dortmund reportedly valuing Haaland as high as £150million, it might come down to who can afford the Norwegian, especially given the financial struggle due to the Covid-19 pandemic.

But while Chelsea may have as good a chance as anyone in affording Haaland, the size of the other clubs involved might just mean they miss out on their prime target this summer.

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Thomas Tuchel Responds To Erling Haaland Speculation

And if that happens, it seems the Blues could turn to familiar ground with Calcio Mercato reporting Romelu Lukaku is the undoubted second choice for Chelsea.

The report claims Roman Abramovich and Chelsea are ready to take 'concrete action' on their former striker with a bid of more than €100million (£86m) this summer.

Lukaku spent three years at Stamford Bridge between 2011 and 2014 before he was sold to Everton for around £28million, a club-record fee for the Toffees at the time.

That may be a decision Chelsea live to regret with the fee being discussed ahead of a possible return ahead of this summer, though regret has already set in for many Blues fans.

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That's because Lukaku has proved himself to be a force since leaving Stamford Bridge.

The Belgian scored 53 times in 110 league appearances for Everton, 28 in 66 for Manchester United and since moving to Inter Milan in 2019, he has scored 59 goals in 91 Serie A appearances.

That sort of form is why Lukaku finds himself back on Chelsea's radar and a potential option should the Haaland bid fail.