Eto'o represented Barcelona between 2004 and 2009, scoring 130 goals in 199 appearances, and the 40-year-old has conceded that he has struggled to watch the La Liga outfit this term.
"Recently, Barcelona have made me suffer," Eto'o said at Festival dello Sport di Trento. "These are tough times for those of us who love the club. It would be hard to accept group stage elimination in the Champions League. I still hope they can go through."
Koeman, despite the speculation surrounding his future, is expected to remain in charge for the team's next three matches against Valencia, Dinamo Kiev and Real Madrid.
Barcelona are on a run of just one win from their last six matches in all competitions. body check tags ::