At the moment I would agree 9, possibly 10 depending how Tuchel feels about taking Wharton, Anderson, and Jordan Henderson for a single midfield position.
Baring injury definitely going (9) - Henderson, Pino, Richards, Kamada, Guessand, Sarr, Lerma, Munoz, Strand Larsen
Potentials (4) - Wharton, Goodman, Lacroix, Mateta
Unlikely but could still go if major injuries (4) - Benitez, Sosa, Mitchell, Riad
Could make a case that Mateta and Lacroix probably fall into the last category. Also, baring Mitchell, those in the last category would need to have a major improvement in both playing time and form to be considered.