Jamie Carragher admits he does not see where Kai Havertz fits into Chelsea's set-up after the German's underwhelming start to life with the Blues.
Havertz made his debut for the club in the 3-1 win at Brighton on Monday but failed to make an impression on the match from the right wing.
He is still awaiting his first goal or assist for Chelsea and endured a quiet first half playing in a central role during the 2-0 defeat to Liverpool on Sunday.
After Andreas Christensen was sent off for a foul on Sadio Mane, Blues boss Frank Lampard sacrificed Havertz to bring on defender Fikayo Tomori at half-time.
Havertz is yet to live up to his £72million price tag and Carragher explained why he is concerned about the 21-year-old's suitability for Chelsea's system.
Carragher told Sky Sports : "I do look and think, 'where does Havertz play? Where does he fit into a 4-3-3?'
"He almost looks like a No10 and we don't see them as much in football now. Where he played today, I don't think that suited Chelsea."
Which position should Kai Havertz play in for Chelsea? Have your say here.
Havertz impressed when used as an attacking midfielder, a wide forward or a striker for former club Bayer Leverkusen, and Jamie Redknapp insists he needs time to find his bearings.
"You've got to give Havertz time," Redknapp said in response to Carragher. "We have to be careful. We're judging a player. You've got (Christian) Pulisic and (Hakim) Ziyech to come in.
"I think Havertz is a No10. With the three they played in midfield today, you need a bit more craft.
"Are we sitting here and questioning Havertz, he's been here two minutes?"
Fellow pundit and former Chelsea star Ashley Cole echoed Redknapp's calls for Havertz to be given the chance to adapt to his new surroundings.
Cole added: "New players coming in, it's a process. The new players will have time to gel. Kai Havertz trained four or five days.
"If you want to shift Havertz in a No10 position, then somebody's got to go. Perhaps Jorginho or Kovacic."
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