Llorenç "Sito" Riera Ortega (born 5 January 1987) is a Spanish professional footballer who plays as an attacking midfielder for Manacor.

A youth and reserve player at Barcelona and Espanyol, he never featured professionally in his own country, going on to spend over a decade abroad.

[6] Riera left FC Chornomorets Odesa – where he spent one and a half years, earning a late red card in his last game for the team, a 1–0 away win against PSV Eindhoven in the group stage of the UEFA Europa League[7]– at the start of March 2014, due to the civil unrest caused by the Ukrainian revolution.

[9] On 1 April 2016, after three seasons of irregular playing time, Riera left the Almaty Central Stadium.

[11] After his stint in Poland, Riera moved to the Cypriot First Division, where he represented Enosis Neon Paralimni FC and AEL Limassol.