I don't know about closer, but he was definitely getting dirty. I'm not sure if that was part of a ploy to get Khan into more of straight forward, brawling type of match, but that's what it did. Clearly, you could see his movement halt and his eagerness to stand and exchange with Garcia happen after multiple low blows. Before that, he was outboxing him with ease.
Recently though, he's been fighting at a more balanced tempo. All I'm saying is, when staying technical and using movement, he can be competitive with anyone.