Roberts bought a new ride-on lawn mower and allowed his son, Mathew, to be the first person to drive it. Due to a factory defect, the mower's gearshift stuck in reverse. Mathew was seriously injured when the mower backed into a ditch and tipped over. When Mathew sued the manufacturer for his injuries, the manufacturer argued that it was not liable because Mathew had not purchased the mower. Is Mathew likely to win his case?