The Auto Garage Advertised Vehicle Repairs by "Licensed Mechanics

The Auto Garage advertised vehicle repairs by "licensed mechanics." Tony,a car owner,took his vehicle to Auto for repairs.The garage owner,Xavier,examined the car,and indicated that extensive repairs were required.Tony left his car with Xavier,and the repairs were carried out by another licensed mechanic,Rick,an employee.Tony paid $150 for the repairs,but on his way home discovered that the repairs had been negligently made,and had ruined the engine.
-Tony may sue only Rick,the mechanic who negligently performed the service.