"After the Appeals Committee rejected Barcelona's claim against the two-match suspension of Luis Suarez, the club shall be referring the decision to the Court of Arbitration for Sport", a statement on the club's official website reads.
"They are improving and, at the moment, are the favourites along with Real Madrid to take the trophy", the former Juventus coach said when asked about Barcelona's clash with Juventus.
Many expect the coach to leave at the end of the season and a negative reception will only serve to heighten those feelings.
Luis Enrique has admitted that Barcelona's 4-0 Champions League humiliation at the hands of French giants Paris Saint -Germain could have been even worse.
Andre Gomes is the suspended Sergio Busquets' deputy for a much-changed Barcelona tonight against Leganes in La Liga.
Barca were keen to bounce back after that damaging defeat at the Parc des Princes and went ahead against Leganes within four minutes through Lionel Messi.
Luis Enrique said he was unaffected by the criticism that has come his way after the heavy defeat to PSG.
"I don't listen to (the press), I'm not going to do it this week".
"What happens in these months will have nothing to do with my decision, not one game, not two or the 38 games in the league. I won't go within 10 metres of a TV or radio".
Barca are second in the standings on 48 points and have played two games less than Real but Luis Enrique is still optimistic about their title chances. One bad game, no matter how awful they played, does not mean anything.
They host the second leg at the Nou Camp on 8 March, but no team has overcome a 4-0 first- leg loss to reach the next round of the knockout stages.
Samuel Marsden covers Barcelona for ESPN FC. "But we can not worry about that, we have a month until then [the return leg]".
Leganes are the lowest scorers in LaLiga with only 15 goals in 22 outings, although the top-flight debutants now sit two points and one place clear of the relegation places.