He made his professional debut for Real Oviedo at age 18, as the club was also in La Liga; after two season-long loans, at Toledo and Mallorca (the former in the Segunda División), he returned,[2] going on to be an important attacking member[3][4]– although mostly as a backup – as the Asturian team would eventually drop two tiers in just four years due to financial irregularities.

[5] Losada left in the 2003–04 campaign to Real Valladolid in the top flight, equalling a career-best eight goals but again being relegated.

[6] After years of intermittent use, he left in January 2007 to another side in the second division, Las Palmas,[7] not managing to score in his five-month spell.

[14] Losada immediately joined the club's coaching staff, being named his compatriot Josep Gombau's assistant.

[19] Shortly after, he was named interim assistant manager at the Hong Kong national side under Wolfgang Luisser.