[citation needed] Bopp played in the Bayern Munich youth system before joining the Academy of English club Nottingham Forest as a 16-year-old on 20 June 2000.

[1] Bopp was an important member of the Forest under-19 side, playing alongside Jermaine Jenas, that comfortably won their league in the 2000–01 season.

His best spell of form at the club was during the 2002–03 season, this was abruptly ended by a rash challenge from Derby County's Craig Burley from which he suffered a serious knee injury.

As a result of his continued excellent performances on the pitch (and one spectacular goal against Scunthorpe United), Bopp was offered a contract extension until the end of the season.

[9] After an injury crisis, Portsmouth were eager to sign Bopp ahead of a Premier League match against Wigan Athletic on 31 October.

[13] Bopp returned to England after signing for Conference Premier club York City on a contact until the end of the 2011–12 season on 22 March 2012.

[20] Bopp joined Basford United of the Northern Premier League Division One South in October 2015, as part of a swap deal with Dan Fletcher.

[21] Bopp was capped twice by Germany at under-19 level,[22] making his debut as a 65th minute substitute in a 4–0 victory over Sweden on 4 September 2001.