Neil Lennon has warned his Celtic players not to fall into the same trap he did against Artmedia Bratislava when they face Braga in their opening Champions League qualifier.
The Hoops' 5-0 thrashing at the hands of Slovakian minnows Artmedia five years ago to the day was one of the worst nights of Lennon's Parkhead playing career.
"Bratislava's a warning," he said. "We don't want to give ourselves too much to do going back to Celtic Park."
The former midfielder helped Celtic salvage some pride in the return leg of that second qualifying round tie with a 4-0 win, but it was not enough to prevent the Hoops crashing out of Europe.
The Artmedia debacle was Gordon Strachan's first competitive match in charge of Celtic, while Wednesday's third qualifying round first leg will be Lennon's European debut as manager.
The rookie Northern Irishman knows he cannot afford to get off to a similar start if Celtic's dream of reaching the lucrative Champions League group stage is to remain intact.
He added: "Our home record at Celtic Park is very, very good. So we know that if we can take some sort of result back to Scotland, we'll be pleased with that."