Question: Where did José Roberto da Silva Junior defect to during the 2001–02 Bayer 04 Leverkusen season?

Context paragraphs:
Bayer 04 Leverkusen (women): Bayer 04 Leverkusen, also known as Bayer Leverkusen, Leverkusen, or simply known as Bayer, is a German women's football club based in Leverkusen, North Rhine-Westphalia.  The club plays in the 2.  Bundesliga, the second tier of German women's football.

2017–18 Bayer 04 Leverkusen season: The 2017–18 Bayer 04 Leverkusen season is the 114th season in the football club's history and 39th consecutive and overall season in the top flight of German football, the Bundesliga, having been promoted from the 2.  Bundesliga Nord in 1979.  In addition to the domestic league, Bayer Leverkusen also are participating in this season's edition of the domestic cup, the DFB-Pokal.  This is the 60th season for Leverkusen in the BayArena, located in Leverkusen, North Rhine-Westphalia, Germany.  The season covers a period from 1 July 2017 to 30 June 2018.

Bayer 04 Leverkusen (handball): HC TSV Bayer 04 Leverkusen is a Germany women's handball club from Leverkusen representing Bayer 04 Leverkusen in the Handball-Bundesliga Frauen.

List of German basketball champions: The German club Bayer Giants Leverkusen (formerly known as TSV Bayer 04 Leverkusen and TuS 04 Leverkusen) currently holds the record for the most German basketball men's championships won, having won 14 championships.

2001–02 Bayer 04 Leverkusen season: Bayer Leverkusen became the second club to finish runner-up in both the Champions League and domestic league and cup competitions in the same season after Barcelona in 1986, with a potential treble unravelling in the final couple of weeks of the season, resulting in no trophies won at all, plus the defections of stars Michael Ballack and Zé Roberto to Bayern Munich.  It dominated the second half of the Champions League final against Real Madrid, but lost 2–1 due to a volley from Zinedine Zidane in the latter stages of the first interval.

Zé Roberto: José Roberto da Silva Júnior (born 6 July 1974), commonly known as Zé Roberto, is a Brazilian professional footballer who plays for Palmeiras as a left wing back or as a midfielder.

Bayer 04 Leverkusen II: Bayer 04 Leverkusen II was the reserve team of German football club Bayer 04 Leverkusen.  Until 2005 the team played as Bayer 04 Leverkusen Amateure.

Bayer 04 Leverkusen: Bayer 04 Leverkusen Fußball GmbH, also known as Bayer 04 Leverkusen ] , Bayer Leverkusen, Leverkusen or simply Bayer, is a German football club based in Leverkusen, North Rhine-Westphalia.  The club plays in the Bundesliga, the top tier of the German football league system, and hosts matches at the BayArena.

2014–15 Bayer 04 Leverkusen season: The 2014–15 Bayer 04 Leverkusen season is the 111th season in the club's football history.

RTHC Bayer Leverkusen: Ruder Tennis Hockey Club Bayer Leverkusen (RTHC Bayer Leverkusen e.V.) is a German rowing, field hockey and tennis club, one of the projects supported by Bayer 04 Leverkusen and Bayer AG and with 2500 members, it is additionally one of the largest sports clubs in Leverkusen.

Supporting paragraphs: 2001–02 Bayer 04 Leverkusen season Zé Roberto
Answer: Bayern Munich