Manchester United striker Zlatan Ibrahimovic claimed Tyrone Mings jumped "into my elbow" and the Bournemouth defender denied deliberately stamping on the Swedish star's head during a 1-1 draw at Old Trafford.
Ibrahimovic's penalty miss and United's inability to defeat a Cherries side that played 45 minutes with 10 men were overshadowed by incidents that resulted in no immediate punishment for either Ibrahimovic or Mings.
However the Football Association may apply retrospective action should referee Kevin Friend's match report include references to those moments.
Mings stood on Ibrahimovic moments before the 35-year-old's elbow struck the Bournemouth centre-back's head. The second incident prompted Andrew Surman to shove Ibrahimovic over, resulting in his dismissal, once referee Friend eventually realised he was brandishing a second yellow card at the Bournemouth midfielder.
Surman may not be the only player to serve a suspension following this, yet both Ibrahimovic - who saw Artur Boruc save his 71st-minute penalty - and Mings denied intending to hurt the other.