Trapattoni has managed Juventus, Roma and Inter Milan and believes the trio will send Chelsea, Arsenal and Manchester United out of the Champions League.
He said: “Juventus have a 51 per cent chance of beating Chelsea. They are going very well.
“Alessandro Del Piero is always dangerous from set pieces. He’ll be a key factor.
“As for Arsenal against Roma, I would bet on Roma towin. Arsenal are another club that is an open building site rightnow. Arsenal have the freshness of their young players, but Roma have come through similar games before.
“Inter and Manchester United are the two strongest teams in Europe and whoever wins will go on to become European champions.
“Alex Ferguson has managed to blend the physical strength of English football with the talents of superstars with Latin American spirit. But Inter have their weapons like Zlatan Ibrahimovic.”
