[3] He was later assigned to Granada CF, a club in the same ownership group as Udinese in Giampaolo Pozzo, joining their reserve team in November 2014 but could only be registered the following January after he turned 18.

[6] In July 2017, now owned by Watford, another club of the Pozzo ownership family, Matheus returned to the Spanish third division on loan with CF Fuenlabrada.

[8] On 22 August 2018, Matheus agreed to a one-year loan deal with fellow third division CD Mirandés,[9] achieving promotion at the end of the 2018–19 season.

[16] Having only played for a combined 31 minutes for Orlando City, Matheus returned to the Spanish Segunda División on loan with Real Oviedo on 4 July 2021 ahead of the 2021–22 season with an option to buy.

[18] On 8 July 2022, it was announced Aias had moved to newly-promoted Segunda División team Racing de Santander for an undisclosed transfer fee.