Joan Francesc Ferrer Sicilia (born 1 January 1970), commonly known as Rubi, is a Spanish former footballer who played as a winger, currently manager of UD Almería.

Born in Vilassar de Mar, Barcelona, Catalonia, Rubi never competed in higher than Segunda División B during a ten-year senior career.

Rubi began working as a coach with Vilassar de Mar, and subsequently was in charge of several Tercera División sides in his native region.

[4] His first experience in the third division was at CE Sabadell FC, being dismissed on 2 March 2005 while two points inside the relegation zone;[5] he was promoted to that level with RCD Espanyol B, a year later.

[21] Rubi signed a two-and-a-half-year contract with UD Almería on 28 April 2021, replacing José Gomes even though the team was placed third with six matches to go.

[23] Almería survived on the final day of the 2022–23 campaign with a 3–3 draw at already relegated Espanyol, putting another of Rubi's former sides, Valladolid, into the second division at their expense.