[5] At Guimarães, after making his debut in a 2–0 derby home loss against S.C. Braga,[6] he eventually became an undisputed first-choice, as the Minho side promoted from the second level and achieved qualification to the UEFA Champions League in just two seasons.

In an online voting, Geromel was considered as 2007–08's best player in the Portuguese League, beating FC Porto's Lisandro López and Lucho González.

An undisputed first-choice from the beginning, Geromel impressed enough during his first two years in Germany, reportedly being courted by Real Madrid from La Liga.

[8] In his first season he contributed with 29 starts and one goal (2,612 minutes of action), but the Balearic Islands team were relegated from the top flight; in December 2013 he rescinded his agreement and returned to his country, to sign for two years and a half with Grêmio while still owned by Köln.

[11] His first cap arrived the following 25 January, when he played the full 90 minutes in a 1–0 friendly win over Colombia at the Estádio Olímpico Nilton Santos.