Deila: We’ll have to be at out best
The Scottish champions came back twice to draw 3-3 with the Serie A side in the first-leg of the last-32 Europa League tie at Parkhead last week.
Substitute John Guidetti’s injury-time strike kept European hopes alive and the Hoops still have a domestic treble in their sights. However, Celtic have yet to win in 11 visits to Italy and the Parkhead boss admits his side will have to step up a level if they are to break that record tonight (kick-off 6pm, televised on BT Sport 1) and get into the last-16.