|Date of birth||24 January 1968|
|Place of birth||Mulazzano, Italy|
|Height||1.80 m (5 ft 11 in)|
|Playing position||Attacking midfielder|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Stroppa started his playing career in the AC Milan's youth system, and was loaned for two seasons at Monza, then a sort of AC Milan feeder club. He returned to AC Milan in 1989, where he won a European Cup and an Intercontinental Cup in 1990 under coach Arrigo Sacchi.
In 1991 he signed for Lazio, and in 1993 moved to Foggia, then an outsider Serie A team known for their spectacular style of play under coach Zdeněk Zeman. After an impressive season with Foggia which allowed him to make his debut for the Italian national team, he returned to the Stadio San Siro to play with the Rossoneri for a single season.
He then played two seasons with Udinese and two seasons and a half with Piacenza Calcio before joining Brescia in the 2001 winter transfer market. After a few other experiences with Genoa in Serie B, Alzano Virescit of Serie C1 and Avellino of Serie B, he returned to Foggia, in Serie C1, in 2004.
Stroppa was coach of AC Milan's Primavera (under 21) team for the 2010–11 season but was relieved of his duties on 11 June 2011, with a year still to run on his contract, and just one week after losing 1–0 to Roma in the quarter-finals of the Campionato Primavera.
On 8 June 2012, he was named head coach of Serie A newcomers Pescara, replacing Zdeněk Zeman, his former boss during his first spell as a player at Foggia, who was signed by Roma a few days before his appointment. He was assisted by Andrea Guerra, Francesco Sità, Andrea Tonelli and Massimo Marini. He resigned as coach of Pescara on 18 November 2012 after a series of bad results and the team has fallen in the middle of the relegation zone. He left the club along with Guerra (vice-coach) and two assistants Sità and Tonelli.
- "UFFICIALE: Stroppa esonerato da tecnico della Primavera". http://www.milannews.it. http://www.milannews.it. Retrieved 11 June 2011.
- "CALCIO: LEGA PRO; STROPPA NUOVO ALLENATORE SUDTIROL" [FOOTBALL: LEGA PRO; STROPPA NEW SUDTIROL HEAD COACH] (in Italian). ANSA.it. 13 July 2011. Retrieved 13 July 2011.
- "Ufficiale: Giovanni Stroppa nuovo allenatore" [Official: Giovanni Stroppa new head coach] (in Italian). Delfino Pescara 1936. 8 June 2012. Retrieved 9 June 2012.
- "Ufficiale: Giovanni Stroppa è il nuovo allenatore dello Spezia" [Official: Giovanni Stroppa is the new Spezia head coach] (in Italian). Spezia Calcio. 20 June 2013. Retrieved 6 July 2013.