Sibling relationships are often regarded as among the longest lasting connections in a person’s life (Conger & Kramer, 2010). Sibling research has addressed topics such as socialization, support, and similarities and differences of siblings (e.g., Eaton, Chipperfield, & Singbeil, 1989; Horn & Horn, 2007; Whiteman, McHale, & Crouter, 2007). Scant attention has been given to how a younger sibling may be influenced by an older sibling’s sport involvement. The current study explored the lived experience of an older sibling’s sport achievement from the perspective of a younger sibling. An open-ended phenomenological approach (Kvale, 1983) was used to gain a description of the experience of sibling achievements in sport. Participant interviews revealed an overall thematic structure consisting of both positive and negative experiences: family influence, social influence, fondness, identity, abandonment, and jealousy. These findings broaden both sibling and sport literature, while providing valuable information for researchers and practitioners.