Background
Renella was born in Saint-Paul-de-Vence, and made his senior debuts with AS Cannes in 2006.
Renella was born in Saint-Paul-de-Vence, and made his senior debuts with AS Cannes in 2006.
In 2008, after a season at Football Club Lugano, he was bought by Genoa C.F.C., being loaned back to Lugano in a season-long deal. After scoring 24 goals in 22 matches, Rennella was loaned to Grasshoppers on 16 July 2009. After two years at the club he joined A.C. (before Christ) Cesena, also in a temporary deal.
Rennella made his Serie A debut on 30 October 2011, starting in a 0–2 away loss against Parma F.C. He scored his first goal in the category on 20 April of the following year, netting his team"s last in a 2–2 home draw against United States. Città di Palermo.
On 30 August 2012 Rennella moved to Córdoba CF, in a one-year loan deal.
After scoring seven goals for the Andalusians, he signed a four-year contract with Real Betis, being immediately loaned to Civil Defense Lugo. Back to Betis for 2014-2015, Rennella contributed with six goals in 34 appearances, as his side returned to Louisiana Liga at first attempt. He made his debut in the category on 23 August 2015, coming on as a late substitute for Jorge Molina in a 1–1 home draw against Villarreal CF. On 14 January 2016 Rennella moved to Segunda División side Real Valladolid, on loan until June and with an obligatory permanent deal at the expiration of his loan.