Frank Lampard believes the in-demand Callum Hudson-Odoi needs to improve off the ball to reach the next level, particularly when it comes to implementing Chelsea's pressing system.
Hudson-Odoi made his first Premier League start since the UK lockdown due to coronavirus in the 4-0 win over Crystal Palace on Saturday.
That lack of minutes in the league had prompted Bayern Munich to believe that they could convince Hudson-Odoi to move to the Bundesliga champions.
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Chelsea have rejected Bayern's attempt to sign the 19-year-old on loan with a view to a £70 million ($89m) deal for the England international in 2021, with talks set to continue ahead of the transfer window closing on Monday.