The purpose of this study was to provide a description of an on-site professional development program for Russian teachers as they learned to teach Sport Education. A concurrent objective was to investigate the effectiveness of this professional development opportunity. Participants were two physical education teachers (one with 27 and one with 3 years of experience) who taught separate sixth grade physical education classes in a school in the Central Chernozem Region of Russia. The data sources included the researcher's log, informal discussions, briefing/debriefing sessions and semi-structured interviews. The following four themes were generated: (a) the need for sample lesson observance in the training phase, (b) teaching-to-model congruency validation, (c) difficulties of "letting go of the control", and (d) cooperative learning. The findings of the study are discussed using the theoretical framework on factors influencing professional development (Birman et al., 2000) and the model of teacher change (Guskey, 1986; 2002). (Contains 1 table.)