They will meet at Wembley on Sunday but 20 years ago Mauricio Pochettino was watching Ole Gunnar Solskjaer perform Champions League miracles for Manchester United at Camp Nou.
Tottenham host United in the Premier League this weekend - arguably the first real test of Solskjaer's interim reign, which has so far delivered five wins from as many matches across all competitions.
Four of those came against sides currently in the bottom half of the table, while the other was over Championship strugglers Reading in the FA Cup third round last time out.
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Nevertheless, a resurgent United will travel to Wembley looking to bridge the six-point gap between themselves and the top four.