The Turkey star says his side remain hopeful of producing a miracle as they attempt to overturn a 3-0 first-leg deficit against Real Madrid in the Copa del Rey
Carlo Ancelotti's side won last week's first leg 3-0 at the Santiago Bernabeu, with the Vicente Calderon return on Tuesday, but the Turkey international is refusing to give up hope of a final berth.
"We did not deserve the result at the Bernabeu," he is quoted as saying by Marca.
"But we are Atletico and we never throw a game. We'll give our all in the second leg."
Arda went on to voice his satisfaction with how the season has panned out so far, but said they have achieved nothing as of yet.
"The season has been good but the most important thing is to finish in the strongest way possible," he continued.
"We will continue doing our best to achieve the club's objectives."