| Season: | 2001–02 |
| League Topscorer: | Michael Ballack (17) |
| Season Topscorer: | Michael Ballack (23) |
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The 2001–02 season saw Bayer Leverkusen become the second club to finish runners-up in the Bundesliga, DFB-Pokal and the Champions League 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. Leverkusen 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.
| Competition | Record | Result | Top Scorer | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bundesliga | runners-up | Michael Ballack, 17 | ||||||||
| DFB-Pokal | runners-up | Dimitar Berbatov, 6 | ||||||||
| Premiere Ligapokal | Preliminary Round | Oliver Neuville, 1 | ||||||||
| UEFA Champions League | runners-up | Oliver Neuville, 7 | ||||||||
| Total | Michael Ballack, 23 | |||||||||
Squad at end of season[1]
Emanuel Pogatetz - FC Kärnten
Yıldıray Baştürk - VfL Bochum
Adam Matysek - Zagłębie Lubin
Marquinhos - FlamengoSee main article: 2001–02 Bundesliga.
See main article: 2001–02 DFB-Pokal.
See main article: 2001 DFB-Ligapokal.
See main article: 2001–02 UEFA Champions League.
See main article: 2001–02 UEFA Champions League Qualifying Rounds.
See main article: 2001–02 UEFA Champions League second group stage.
See main article: 2001–02 UEFA Champions League knockout stage.
See main article: 2002 UEFA Champions League Final.
| width=15 | width=15 | width=15 | width=15 | width=145 | Name | width=80 | Bundesliga | width=80 | DFB-Pokal | width=80 | Premiere Ligapokal | width=80 | Champions League | width=80 | Total | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 13 | MF | Michael Ballack | 17 | 0 | 0 | 6 | 23 | |||||||||||
| 2 | 27 | FW | Oliver Neuville | 13 | 1 | 1 | 7 | 22 | |||||||||||
| 3 | 9 | FW | Ulf Kirsten | 11 | 3 | 0 | 4 | 18 | |||||||||||
| 4 | 12 | FW | Dimitar Berbatov | 8 | 6 | 0 | 2 | 16 | |||||||||||
| 5 | 25 | MF | Bernd Schneider | 5 | 2 | 0 | 2 | 9 | |||||||||||
| 6 | 19 | DF | | Lúcio | 4 | 1 | 0 | 3 | 8 | ||||||||||
| 7 | 8 | MF | | Zé Roberto | 4 | 0 | 0 | 1 | 5 | ||||||||||
| 26 | DF | Zoltán Sebescen | 3 | 0 | 0 | 2 | 5 | ||||||||||||
| 9 | 10 | MF | | Yıldıray Baştürk | 3 | 0 | 0 | 1 | 4 | ||||||||||
| 10 | 1 | GK | Hans-Jörg Butt | 2 | 0 | 0 | 1 | 3 | |||||||||||
| 6 | DF | Boris Živković | 2 | 1 | 0 | 0 | 3 | ||||||||||||
| 23 | DF | Thomas Brdarić | 1 | 1 | 0 | 1 | 3 | ||||||||||||
| 28 | MF | Carsten Ramelow | 2 | 0 | 0 | 1 | 3 | ||||||||||||
| 14 | 3 | DF | Marko Babić | 0 | 0 | 0 | 1 | 1 | |||||||||||
| 35 | DF |  | Diego Placente | 1 | 0 | 0 | 0 | 1 | |||||||||||
| Own goal | 1 | 1 | 0 | 0 | 2 | ||||||||||||||
| Totals | 77 | 16 | 1 | 32 | 126 | ||||||||||||||