Fountain (groin) returned to Chiefs practice Thursday, Pete Sweeney of ArrowheadPride.com reports
Fountain was a full participant during Kansas City's practice Thursday after dealing with various injuries over the past week. The 2018 fifth-round pick was elevated for two games from the Chiefs' practice squad last season, and he'll have to prove his value both as a pass catcher and on special teams this preseason if he wants to secure a role on the team's final 53-man roster.