The authors examined relationships among burnout and motivational types differing in self-determination, using simple correlational analyses as well as more sophisticated canonical correlation analyses allowing for the simultaneous examination of multiple independent and dependent variables. The authors hypothesized that: (a) motivation low in self-determination (e.g., amotivation) would be positively associated with burnout; and (b) motivation high in self-determination (e.g., intrinsic motivation) would be negatively associated with burnout. The purpose of the current study was to replicate and extend the Cresswell and Eklund (2005) examination of New Zealand amateur rugby athletes. In particular, the aim of this study was to examine the motivational profiles of professional rugby players as well as the relationships between SDT motivational types that comprise this profile and the key characteristics of burnout. New Zealand male professional rugby union players (N = 199) ages 19 to 33 years (M = 25.19 years, SD = 2.98) were recruited to participate in this investigation. Burnout was positively associated with amotivation (motivation low in serf-determination) and negatively associated with intrinsic motivation (i.e., motivation high in serf-determination). The current study provides additional evidence to support a SDT explanation for athlete burnout (Cresswell & Eklund, 2005). Specifically, the results replicate and extend past associations between motivational types and athlete burnout (Cresswell & Eklund, 2005). The results of the study highlight interesting associations among motivational types and the key characteristics of burnout. Causal inferences, however, are not warranted on the basis of these analyses.