The Canadian-born Englishman is enjoying a breakthrough season at Stamford Bridge, having featured 21 times for the Blues in all competitions before the season was suspended due to the coronavirus pandemic.
Tomori returned to West London last summer, reuniting with manager Frank Lampard after a successful loan spell during the 2018-2019 season at Championship side Derby County.
The 22-year-old admits the step up from the second tier of English football to the Premier League has been noticeable, and says coming up against Liverpool’s lethal attack, particularly Salah and Firmino has been his greatest challenge so far.
"It has been different for me this season, just because it is the Premier League and it is a step up. You have to be more focused and prepared, always alert,” the Chelsea academy graduate told Sky Sports.
"In the Championship you have a lot of different strikers - some love it in the air or like to go in behind. But then I'm playing against [Roberto] Firmino and he's dropping deep into midfield.”
“Things happen a lot faster and mistakes are punished more harshly.”
"Firmino was probably the most difficult [to play against] - along with Salah. Every time they got the ball, I was thinking, 'This is a challenge but this is where I want to be - this is a chance to prove that I can play at this level'.