Felipe Massa and Esteban Gutierrez have both been handed three-place grid penalties for impeding rivals during qualifying at Barcelona.
Massa committed his offenses during Saturday's first qualifying segment at the Spanish track when he held up Mark Webber as he slowed down ahead of the Australian driver before moving out of his way.
Meanwhile, Gutierrez got in the way of Kimi Raikkonen in the afternoon's second segment.
Found guilty by the stewards, Massa and Gutierrez will drop from sixth to ninth and 16th to 19th places respectively.
01 Nico Rosberg Mercedes 1:20.718
02 Lewis Hamilton Mercedes 1:20.972
03 Sebastian Vettel Red Bull 1:21.054
04 Kimi Raikkonen Lotus 1:21.177
05 Fernando Alonso Ferrari 1:21.218
06 Romain Grosjean Lotus 1:21.308
07 Mark Webber Red Bull 1:21.570
08 Sergio Perez McLaren 1:22.069
09 Felipe Massa Ferrari 1:21.219 *
10 Paul di Resta Force India 1:22.233
11 Daniel Ricciardo Toro Rosso 1:22.127
12 Jean-Eric Vergne Toro Rosso 1:22.166
13 Adrian Sutil Force India 1:22.346
14 Jenson Button McLaren 1:23.166
15 Nico Hulkenberg Sauber 1:22.389
16 Valtteri Bottas Williams 1:23.260
17 Pastor Maldonado Williams 1:23.318
18 Giedo van der Garde Caterham 1:24.661
19 Esteban Gutierrez Sauber 1:22.793 *
20 Jules Bianchi Marussia 1:24.713
21 Max Chilton Marussia 1:4.996
22 Charles Pic Caterham 1:25.070
* three-place penalty for impeding
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