Sport Training Video Website

We require a website for sport training that allows students to upload own videos ( like YouTube layout and look -- with URL generator and other video files own by user ) and watch selected videos in player with slow motion forward and back. Also must be private in user own account but can select coach to view the technique in video and send auto URL link to video after choosing coach from list. Coach receives URL link to view and watch with slow motion and send back email report...in a basic form reply...simply and easy.. no charge just service for juniors in sport to learn Requires form for coach to join and add details and become advisor.