“…There is concern in TE that when pre-service teachers enter a teacher preparation program with indepth CK in only one or two sports (Kim, Lee, Ward, & Li, 2015) they will finish their program short of developing an adequate understanding of the content taught in school PE (Kim, 2016;Siedentop, 2002). Therefore, PE teachers often teach content outside their areas of expertise and sports where they lack personal performance skills (Reuker, 2016) or CK (Siedentop, 2002;Sinelnikov, Kim, Ward, Curtner-Smith, & Li, 2015). However, sport-specific knowledge and experience seems to be necessary but insufficient for good teaching; Reuker (2016) reported that athletes lacked the pedagogical knowledge necessary to teach their own sports.…”