Captain America: Civil War Trailer Breakdown - 40 Things You Need To See
25. ...Sporting A Black Eye
Presumably, at this stage, Tony has already fought against either Captain America or Bucky and didn't come out of it very well. That's an old black eye, not one that has just happened after all. His challenge that Cap looks defensive also suggests he's just rumbled him doing something he definitely shouldn't have been. And in voice-over, he confirms why he supports the Accords: "if we can't accept limitations, we're no better than bad guys."