Alberto "Berto" Cayarga Fernández (born 17 September 1996) is a Spanish professional footballer who plays as a winger for Real Unión.
Born in Avilés, Asturias, Cayarga joined Sporting de Gijón's youth setup in 2014, after already making his senior debut with SD Llano 2000.
[4] The following 31 January, he terminated his contract with Racing,[5] and signed a six-month deal with third division side FC Cartagena, with option for a further year, just hours later.
On 3 January 2023, after six months without a club, Cayarga joined Polish Ekstraklasa side Radomiak Radom on a deal until the end of the season with an extension option.
[8] On 24 August 2023, after asking to be released from his contract so that he could return to Spain, Cayarga signed a two-year deal with Deportivo de La Coruña in Primera Federación.