"isn't even training right now and motivation is lacking" seems pretty conclusive. Why not just say, "I'm not sure if he's training right now?" I find it really obnoxious to question a skater's level of motivation even when you have firsthand info, which you said you don't have (but thanks for being honest now at least). I don't mean to lecture, but there's enough going on this season without having to sift out fake news...