[1][2][3][6][7] During his period spent with The Military Men he also won five Cupa României and played 21 games with one goal scored in European competitions, taking part in the 1971–72 European Cup Winners' Cup campaign, playing all six games as the team reached the quarter-finals by eliminating Hibernians and Barcelona, being eliminated after 1–1 on aggregate on the away goal rule by Bayern Munich.

[1][2][3][11][12] Iosif Vigu ended his playing career in 1982 after spending one season in Divizia C at ASA Chimia Buzău.

[13][15] Vigu played four games at the 1978 World Cup qualifiers, opening the score in a 6–4 loss against Yugoslavia.

[13][16] At the Euro 1980 qualifiers Vigu appeared in two games, a 3–2 home victory against Yugoslavia and a 1–0 away loss against Spain.

[13] Iosif Vigu coached teams mostly from the Romanian lower leagues such as ASA Chimia Buzău, Olimpia Satu Mare, Minerul Turț, Armătura Zalău and Someșul Satu Mare and contributed to the formation of footballers Tiberiu Csik, Zoltan Ritli, Daniel Prodan and Gábor Gerstenmájer.