1.FSV Mainz 05
Official Name: 1. Fußball-und Sportverein Mainz 05
Formed: 1905 Ground: Opel Arena (34,000) Manager: Bo Svensson [DEN]
| Number | Name | Nat | Pos | Height | Weight | Date of Birth | Birth Place | Previous Club |
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| 4 | Jerry St. Juste | NED | D | 1.85 | 71 | 19-10-96 | Groningen | Feyenoord |
| 5 | Jean-Paul Boëtius | NED | M | 1.82 | 74 | 22-03-94 | Rotterdam | Feyenoord |
| 6 | Danny Latza | GER | M | 1.79 | 75 | 07-12-89 | Gelsenkirchen | Bochum |
| 7 | Robin Quaison | SWE | F | 1.83 | 76 | 09-10-93 | Stockholm | Palermo |
| 8 | Levin Öztunali | GER | M | 1.76 | 70 | 15-03-96 | Hamburg | Bayer Leverkusen |
| 9 | Robert Glatzel | GER | F | 1.93 | 85 | 08-01-94 | Munich | Cardiff C |
| 10 | ||||||||
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| 13 | ||||||||
| 14 | Pierre Kunde | CMR | M | 1.80 | 86 | 26-07-95 | Limbé | Atlético Madrid B |
| 15 | Luca Kilian | GER | D | 1.90 | 88 | 01-09-99 | Witten | Paderborn |
| 16 | Stefan Bell | GER | D | 1.92 | 86 | 24-08-91 | Andernach | None |
| 17 | Kevin Stöger | AUT | M | 1.75 | 70 | 27-08-93 | Steyr | Fortuna Düsseldorf |
| 18 | Daniel Brosinski | GER | D | 1.78 | 65 | 17-07-88 | Karlsruhe | Greuther Fürth |
| 19 | Moussa Niakhaté | FRA | D | 1.75 | 75 | 08-03-96 | Roubaix | Metz |
| 20 | Edimilson Fernandes | SUI | M | 1.90 | 70 | 15-04-96 | Sion | West Ham U |
| 21 | Karim Onisiwo | AUT | F | 1.88 | 76 | 17-03-92 | Vienna | Mattersburg |
| 22 | Danny da Costa | GER | D | 1.75 | 70 | 13-07-93 | Neuss | Eintracht Frankfurt |
| 23 | Phillipp Mwene | AUT | D | 1.70 | 66 | 29-01-94 | Vienna | Kaiserslautern |
| 24 | Merveille Papela | GER | M | 1.74 | 65 | 18-01-01 | Mainz | None |
| 25 | Niklas Tauer | GER | M | 1.77 | 67 | 17-02-01 | Mainz | None |
| 26 | Paul Nebel | GER | M | 1.69 | 64 | 10-10-02 | Bad Nauheim | Kickers Offenbach |
| 27 | Robin Zentner | GER | G | 1.93 | 96 | 28-10-94 | Rüdesheim | None |
| 28 | Ádám Szalai | HUN | F | 1.93 | 80 | 09-12-87 | Budapest | 1899 Hoffenheim |
| 29 | Jonathan Burkardt | GER | F | 1.80 | 74 | 11-07-00 | Darmstadt | None |
| 30 | ||||||||
| 31 | Dominik Kohr | GER | M | 1.83 | 75 | 31-01-94 | Trier | Eintracht Frankfurt |
| 32 | ||||||||
| 33 | Omer Hanin | ISR | G | 1.91 | 82 | 14-05-98 | Rishon LeZion | Hapoel Hadera |
| 34 | ||||||||
| 35 | Leandro Barreiro | LUX | M | 1.70 | 65 | 03-01-00 | Erpeldange | Erpeldange |
| 36 | Marlon Mustapha | AUT | F | 1.83 | 82 | 24-05-01 | Vienna | Red Bull Salzburg |
| 37 | Finn Dahmen | GER | G | 1.86 | 80 | 27-03-98 | Wiesbaden | None |
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| 41 | Marius Liesegang | GER | G | 1.89 | 83 | 07-01-00 | Magdeburg | Magdeburg |
| 42 | Alexander Hack | GER | D | 1.93 | 82 | 08-09-93 | Memmingen | Unterhaching |
Players no longer at this club |
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| Number | Name | Nat | Pos | Height | Weight | Date of Birth | Birth Place | New Club |
| 34 | Ridle Baku | GER | M | 1.76 | 72 | 08-04-98 | Mainz | Wolfsburg |
| 3 | Aarón | ESP | D | 1.80 | 72 | 22-04-97 | Montmeló | Celta Vigo (On Loan) |
| 22 | Issah Abass | GHA | F | 1.73 | 67 | 26-09-98 | Asokwa | FC Twente (On Loan) |
| 13 | Dimitri Lavalée | BEL | D | 1.87 | 76 | 13-01-97 | Soumagne | Sint-Truiden (On Loan) |
| 9 | Jean-Philippe Mateta | FRA | F | 1.92 | 84 | 28-06-97 | Clamart | Crystal Palace (On Loan) |
| 11 | Ji Dong-Won | KOR | F | 1.87 | 78 | 28-05-91 | Jeju | Eintracht Braunschweig (On Loan) |