There was sufficient evidence that a lawn chair was a deadly weapon for purposes of assault. The victim was knocked unconscious and suffered multiple facial fractures and injuries which required surgery; after surgery his jaw was wired shut for weeks and he missed 2-3 weeks of work; and at trial the victim testified that he still suffered from vision problems. Because the State presented evidence that the defendant assaulted the victim with the lawn chair and not his fists alone, it was not required to present evidence as to the parties’ size or condition.