Inter Milan manager Simone Inzaghi is looking forward to taking on his former team mate Diego Simeone when his side play Atletico Madrid in the Champions League, but is unsure what to expect from the unpredictable Spanish side.

Inzaghi and Simeone were members of the Lazio side which won a Serie A and Coppa Italia double in 2000, and they come face to face on Tuesday when the Argentine brings his Atletico side to the San Siro for the first leg of their last 16 tie.