Roma's having a really, really bad day. Barcelona was already up 3-0 at halftime, and this goal by Luis Suarez was the third.
Credit: user penguin672232 on r/soccer
Radja Nainggolan does an OK job of charging out, then standing in the place where you would block a shot taken by a reasonable person. But Suarez starts his shot well wide of the near post, and it perfectly bends just inside.
Roma's a perfectly decent soccer team and Barcelona is making them look like amateurs.