You had stayed back at headquarters when levi and his squad set out to capture the female titan along with the other scouts. You heard it didn't go as planned, a lot of people had died as well as Levi's squad mates. You knew this would take a huge piece out of levi and it would be bad, to make it worse he was injured.

Levi was wearing his casual suit as he was not able to do his duty with an injured ankle, it was definitely worrying Humanities strongest was injured...your poor captain