Henrik Larson has admitted that he has been impressed by his former teammate Neil Lennon's work as Celtic manager.
Lennon has guided Celtic back into the Champions League this season, with the Glasgow giants picking up an impressive away victory against Spartak Moscow last month.
Larsson believes that Lennon has proved his credentials as a coach by improving Celtic on a tight budget.
The Celtic legend told BBC Sport: "I'm not surprised by how well Celtic have done so far. I think they have done an excellent job.
"Neil Lennon has worked well with limited resources. They had a fantastic result away from home in their last Champions League game and it will be interesting to see how they get on tonight against Barcelona."
Larrson also revealed that he cannot choose between his two former clubs when they lock horns at the Nou Camp tonight.
