A leg may be frozen in a position by a knee.Logical formLearned from37 sentences. A male may slump to knees.Logical formLearned from37 sentences. A male may need surgery on a knee.Logical formLearned from37 sentences. Knees can be stiff.Logical formLearned from37 sentences. A male may spraine a knee.Logical formLearned from37 sentences. A knee can be worse.Logical formLearned from37 sentences. A male may damage a knee.Logical formLearned from37 sentences. A knee can be unstable.Logical formLearned from37 sentences. A male may hyperextend a knee.Logical formLearned from37 sentences. A knee may pop.Logical formLearned from37 sentences. A male may have a (knee problem).Logical formLearned from37 sentences. A knee may pertain-to a player.Logical formLearned from37 sentences. A knee may be recovered.Logical formLearned from37 sentences. A male may be recovered from a (knee injury).Logical formLearned from36 sentences. A female may recover from a (knee injury).Logical formLearned from36 sentences.