# 2008 Mercedes Cup – Singles

Rafael Nadal was the defending champion, but was forced to withdraw due to a knee injury.
Unseeded Juan Martín del Potro won in the final 6–4, 7–5, against second-seeded Richard Gasquet.

## Seeds

The top four seeds receive a bye into the second round.
* Rafael Nadal (withdrew due to a knee injury)
* Richard Gasquet (final)
* Nicolás Almagro (second round)
* Philipp Kohlschreiber (quarterfinals)
* Simone Bolelli (second round)
* Agustín Calleri (semifinals)
* José Acasuso (first round)
* Eduardo Schwank (semifinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 8 | Eduardo Schwank | 2 | 4 | | | | | |
| | Juan Martín del Potro | 6 | 6 | | | | | |
| | Juan Martín del Potro | 6 | 6 | | | Juan Martín del Potro | 6 | 7 |
| | | | | | 2 | Richard Gasquet | 4 | 5 |
| 6 | Agustín Calleri | 7 | 2 | 3 | 2 | Richard Gasquet | 4 | 5 |
| 2 | Richard Gasquet | 6$^3$ | 6 | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | | | | | LL | J Hernych | 7 | 0 | 7 | | | | | | | | | |
| | B Dabul | 6 | 5 | 6 | | B Dabul | 6$^5$ | 6 | 6$^5$ | | | | | | | | | |
| | D Gremelmayr | 3 | 7 | 3 | | | | | | LL | J Hernych | 0 | 6 | 3 | | | | |
| WC | D Brands | 6 | 3 | 4 | | | | | | 8 | E Schwank | 6 | 4 | 6 | | | | |
| WC | A Beck | 3 | 6 | 6 | WC | A Beck | 6$^5$ | 2 | | | | | | | | | | |
| WC | G Coria | 6 | 1 | 2 | 8 | E Schwank | 7 | 6 | | | | | | | | | | |
| 8 | E Schwank | 0 | 6 | 6 | | | | | | | | | | | 8 | E Schwank | 2 | 4 |
| | | | | | | | | | | | | | | | | JM del Potro | 6 | 6 |
| | | | | | 4 | P Kohlschreiber | 6 | 6 | | | | | | | | | | |
| | C Berlocq | 6 | 5 | 3 | Q | Y Schukin | 3 | 3 | | | | | | | | | | |
| Q | Y Schukin | 4 | 7 | 6 | | | | | | 4 | P Kohlschreiber | 6$^3$ | 3 | | | | | |
| | E Korolev | 3 | 5 | | | | | | | | JM del Potro | 7 | 6 | | | | | |
| | JM del Potro | 6 | 7 | | | JM del Potro | 6 | 3 | 6 | | | | | | | | | |
| | M Zverev | 7 | 4 | 2 | 5 | S Bolelli | 3 | 6 | 3 | | | | | | | | | |
| 5 | S Bolelli | 6$^6$ | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Calleri | 7 | 6 | | | | | | | | | | | | | | | |
| | J Melzer | 6$^3$ | 4 | | 6 | A Calleri | 5 | 7 | 6 | | | | | | | | | |
| Q | S Giraldo | 6 | 4 | 6$^{11}$ | | P Cuevas | 7 | 5 | 1 | | | | | | | | | |
| | P Cuevas | 4 | 6 | 7 | | | | | | 6 | A Calleri | 6 | 6 | | | | | |
| | M Berrer | 6 | 6 | | | | | | | | M Berrer | 4 | 2 | | | | | |
| | É Prodon | 3 | 4 | | | M Berrer | 7 | 0 | | | | | | | | | | |
| | | | | | 3 | N Almagro | 5 | 0 | r | | | | | | | | | |
| | | | | | | | | | | | | | | 6 | A Calleri | 7 | 2 | 3 |
| 7 | J Acasuso | 3 | 6$^5$ | | | | | | | | | | | 2 | R Gasquet | 6$^3$ | 6 | 6 |
| | Montañés | 6 | 7 | | | Montañés | 7 | 6 | | | | | | | | | | |
| | S Ventura | 1 | 4 | | | Ó Hernández | 6$^4$ | 4 | | | | | | | | | | |
| | Ó Hernández | 6 | 6 | | | | | | | | Montañés | 3 | 6$^5$ | | | | | |
| Q | L Rosol | 6 | 6 | | | | | | | 2 | R Gasquet | 6 | 7 | | | | | |
| Q | M Fischer | 2 | 4 | | Q | L Rosol | 7 | 2 | 2 | | | | | | | | | |
| | | | | | 2 | R Gasquet | 6$^7$ | 6 | 6 | | | | | | | | | |