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(A) Short-tau inversion recovery (STIR) image of the initial injury showing extensive increased signal intensity at the musculotendinous junction of the musculus biceps femoris (arrow). (B) T1-weighted image of the same initial injury showing no abnormality. (C) T1-weighted image at return to play showing an increased area of low-signal intensity at the site of the injury, indicating fibrous tissue formation.
