To identify the specific fallacy in the argument, if the argument commits a fallacy of a personal attack or an emotional appeal in the provided passage and also explain it and to also mention if there is no fallacy. Consider, the passage,

After lunch today, my assistant football coach gave me some advice. He saw me drinking soda, eating a candy bar, and smoking a cigarette. He said that if I wanted to maximize my potential as an athlete, I need to give up stuff that is bad for my health. Have you ever seen that guy? He is really overweight and smokes cigars. It's obvious that he has nothing to offer to make me a top athlete.