However, hours later the club announced the travelling squad for the match on Twitter, with his name included - claiming the medical team has given an "all clear" verdict. Barcelona sits atop the group standings with nine points from three games and can clinch first place in its pool with a victory over second-place Inter.
But Frenchman Ousmane Dembele came off from the bench to score the equalizer for Barcelona in the 87th minute before Luis Suarez scored the winning goal for the Catalans in injury time as they won 3-2. "We'll know more after training", added the Inter coach.
She also spoke about Lionel Messi on the show, insisting that Icardi has a good relationship with his countryman.
Does FC Barcelona's flawless UEFA Champions League record represent something more substantive than a hot start?
The Argentine maestro had missed Barca's previous four games with a fractured right arm sustained against Sevilla last month.
Marc-Andre Ter Stegen should get the nod in goal. Umtiti has returned to training but is still not fully match fit yet, meaning Gerard Pique and Clement Lenglet will start at the heart of the defence once again. Sergio Busquets and Ivan Rakitic are the other two players completing the midfield trio, with the experienced heads bringing a sense of calm in the middle of the park.
And upfront, Messi and Philippe Coutinho should flank Luis Suarez.