When the 2022/23 UEFA Champions League campaign got underway, we highly doubt that anyone would have predicted an all-Milanese semifinal. But following AC Mian's upset victory against runaway Serie A leaders Napoli and Inter Milan holding their nerve to dispatch Benfica, that is exactly what we are about to witness. And it isn't the first time. Exactly 20 years ago, the Rossoneri and the Nerazzurri squared off for a spot in the Old Trafford-hosted Champions League final. Back then, however,…