The appearances of the bones and joints are normal - except in relation to the head of the 2nd metatarsal.
Specifically:
1) The head of the 2nd metatarsal (MT) is flattened - this is consistent with the diagnosis of Freiberg's Infraction.
2) The small fragment lying lateral to the head of the 2nd MT may be part of the (longstanding) Freiberg's infraction, or it could represent a new fracture - ie related to the foot stamping.
Clinical correlation with the radiographic findings is necessary because: (a) if the present tenderness is more generalised and not centred on the head of the 2nd MT then this is not a new fracture fragment - it is simply part of the Freiberg's infraction (fragmentation affecting the MT head can occur in association with the flattening); (b) if the tenderness is centred over the 2nd MT head then the small fragment might (but only "might") be a recent fracture.
Freiberg's infraction. See: Accident & Emergency Radiology: A Survival Guide (3rd edition). Page 306.