‘“I know a lot of people have said I’m just a mutt, a fourth-liner; I’m just going to go out and hit,” Kaleta said Monday inside the First Niagara Center after the Sabres prepared for tonight’s tilt against the New Jersey Devils. “I take that personally. I take that as a challenge. I love challenges and I love having people say that about me because it motivates me to do even more and be even better.”’