|Full name||Llorenç Riera Ortega|
|Date of birth||5 January 1987|
|Place of birth||Manacor, Spain|
|Height||1.85 m (6 ft 1 in)|
|2008–2009||→ Panthrakikos (loan)||28||(5)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 2 April 2017.
Born in Manacor, Balearic Islands, Riera represented both major clubs in Barcelona, FC Barcelona and RCD Espanyol, but never made it past its B-sides. In the 2007–08 season he suffered relegation from the third division with the latter, not managing to find the net in the process.
On 8 July 2009, after a loan experience with Panthrakikos FC, Riera signed with fellow Superleague Greece team Panionios FC. On 14 December 2011, player and club mutually terminated the contract.
At the start of March 2014, Riera left FC Chornomorets Odesa – which he represented for one and a half seasons, earning a late red card in his last game for the team, a 1–0 away win against PSV Eindhoven for the UEFA Europa League group stage– due to the civil unrest caused by the 2014 Ukrainian revolution. On 23 June 2014 he moved to Kazakhstan, signing a three-and-a-half-year contract with FC Kairat.
- Mercado fichajes – Pretemporada 2008/2009 (Transfer market – Preseason 2008/2009); at Webesport (in Spanish)
- Λύση συνεργασίας με Σίτο Ριέρα (Riera and Panionios part ways); Panionios FC, 14 December 2011 (in Greek)
- "Dja Djedje has PSV heading for the exit". UEFA.com. 12 December 2013. Retrieved 11 July 2014.
- "Five foreign players leave Football Club Chornomorets because of situation in Ukraine". Kyiv Post. 4 March 2014. Retrieved 8 April 2014.
- Риера, Жерар, Исаэль и Куат стали игроками «Кайрата» [Riera, Gerаrd, Isael and Kuat are «Кairat» players] (in Russian). FC Kairat. 23 June 2014. Retrieved 24 June 2014.
- "Риера – вне заявки" [Riera – Departure] (in Russian). FC Kairat. 1 April 2016. Retrieved 2 April 2016.
- "Sito Riera zawodnikiem Śląska!" [Sito Riera a Śląsk player!] (in Polish). Śląsk Wrocław. 22 August 2016. Retrieved 23 August 2016.
- Sito Riera: “Me gustaría jugar en el Mallorca” (Sito Riera: “I would like to play with Mallorca”); Fútbol Balear, 11 August 2010 (in Spanish)