Lionel Messi missed Barcelona's goalless draw against Malaga through illness just days before the Champions League clash against Celtic.

The Argentinean was sidelined for the Spanish Liga match at the Camp Nou on Saturday, with manager Luis Enrique taking no chances over the playmaker's readiness.

Barcelona have a number of injury concerns ahead of the game against Brendan Rodgers' side at Celtic Park on Wednesday, with Messi's illness just adding to those worries.

Gerard Pique and Andres Iniesta are both doubtful through injury, with Sergi Roberto also expected to be missing against Celtic.