Any full-time City employee, whether classified or unclassified, receiving worker’s compensation benefits and not able to perform employment duties because of the disability upon which the worker’s compensation benefits are based may choose to use accrued sick leave compensation (based upon the employee’s regular rate of pay) to supplement worker’s compensation benefits to the extent that the employee’s compensation during disability (worker’s compensation benefits and gross sick leave compensation) equals the employee’s net regular compensation in accordance with the current pay schedule immediately prior to qualifying for worker’s compensation benefits.