This is the squad in full:
Goalkeepers: 1. Marc-André ter Stegen, 13. Jasper Cillessen
Defenders: 3. Gerard Piqué, 14. Javier Mascherano, 18. Jordi Alba, 19. Lucas Digne, 20. Sergi Roberto, 22. Aleix Vidal, 23. Samuel Umtiti
Midfielders: 4. Ivan Rakitic, 5. Sergio Busquets, 6. Denis Suarez, 7. Arda Turan, 8. Andrés Iniesta, 21. André Gomes, 28. Carles Aleñá
Forwards: 9. Luis Suárez, 10. Lionel Messi, 17. Paco Alcácer
There is good and bad news regarding this squad: Arda Turan is back from his injury and will be on the bench, but Neymar is indeed suspended and will not travel with the team. Aleix Vidal is a surprise inclusion, but the full-back is only travelling to support his teammates and is not even close to a return. Rafinha and Mathieu miss out through injury, Jordi Masip is left out by Lucho.
Predicted starting lineup (3-5-2):
Ter Stegen; Mascherano, Piqué, Umtiti; Roberto, Rakitic, Busquets, Iniesta, Alba; Messi, Suárez
The match kicks off this Sunday at 8:45pm CET / 7:45pm BST (UK) / 2:45pm ET, 11:45am PT (USA) / 12:15am IST (India, Monday), and you can join us to follow and comment the biggest game of the season.
VISCA EL BARÇA! GANAREMOS EL CLÁSICO!