The 1999–2000 UEFA Cup was won with a winning goal by a footballer that was the former captain of what team?
1999–2000 UEFA Cup:  The match went on to penalty kicks in which Gheorghe Popescu scored the winning goal to win the cup. Gheorghe Popescu: Gheorghe "Gică" Popescu (] ; born 9 October 1967) is a retired Romanian football defender, former captain of FC Barcelona and key part of the Romania national team in the 1990s.
FC Barcelona