(iii) no employment as a Doctor or Dentist in Training, unless the applicant:
(1) has obtained a primary degree in medicine or dentistry at bachelor's level or above from a UK institution that is a UK recognised or listed body, or which holds a sponsor licence under Tier 4 of the Points Based system;
(2) has, or has last been granted, entry clearance, leave to enter or leave to remain that was not subject to any condition restricting him from taking employment as a Doctor in Training, and has been employed during that leave as a Doctor in Training; or
(3) has, or has last been granted, entry clearance, leave to enter or leave to remain that was not subject to any condition restricting him from taking employment as a dentist in Training, and has been employed during that leave as a Dentist in Training,
(iv) no employment as a professional sportsperson (including as a sports coach).
This is the reason why it says Restricted Work on BRP