Tomori started the campaign behind a number of players at Chelsea, but he has quickly impressed since being handed a chance.
Tomori has coped better than Kurt Zouma, who began the season as first choice.
And Lampard now suggests that Tomori may even be Chelsea’s first choice centre-back, with Antonio Rudiger ruled out with injury.
“There is competition in there, Tomori is now number one or two as it stands,” he said. “They are really playing well. Age isn’t a huge story.”
Tomori is one of a number of Chelsea academy products who have broken through at Stamford Bridge since Lampard took charge, and many of them have excelled.
Mason Mount and Tammy Abraham have also received big promotions this season, and look to be part of Chelsea’s first choice starting line-up now.
Chelsea’s next match comes against Brighton & Hove Albion at the weekend, when Tomori will be hoping to continue his impressive run of performances.
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