|Full name||Francisco Javier Guerrero Martín|
|Date of birth||11 March 1996|
|Place of birth||Coín, Spain|
|Height||1.75 m (5 ft 9 in)|
|Playing position(s)||Right back / Winger|
|2020||→ Almería (loan)||7||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 20 July 2020|
Born in Coín, Province of Málaga, Andalusia, Francis joined Real Betis' youth setup in 2014, from Puerto Malagueño CF. He made his senior debut with the B team on 19 April 2015, coming on as a first-half substitute for Nacho Abeledo in a 0–0 Segunda División B away draw against Real Balompédica Linense.
Francis made his first-team – and La Liga – debut on 20 August 2017, replacing Matías Nahuel in a 0–2 away loss against FC Barcelona. Converted to a right back by manager Quique Setién, he scored his first professional goal the following 17 March by netting the last in a 3–0 home win over RCD Espanyol.
- As of match played 10 March 2019
|Club||Season||League||National Cup||League Cup||Europe||Other||Total|
|Betis B||2014–15||Segunda División B||5||0||0||0||—||—||—||5||0|
- Appearances in UEFA Europa League
- Alba, Jesús (13 July 2014). "Lo mejor del Puerto Malagueño, para el Betis y para el Málaga" [The best of Puerto Malagueño, for Betis and for Málaga] (in Spanish). Cuenta con la Cantera. Archived from the original on 21 August 2017. Retrieved 20 August 2017.
- Cerpa, Rafa (19 April 2015). "Valioso empate que sabe a playoff" [Valuable draw that tastes like playoff] (in Spanish). Vavel. Retrieved 6 January 2018.
- "Real Jaén 3–1 Betis B: Se aleja la permanencia" [Real Jaén 3–1 Betis B: Survival further away]. Estadio Deportivo (in Spanish). 21 February 2016. Retrieved 6 January 2018.
- "Seis canteranos del Betis B amplían sus contratos con el club" [Six youth players from Betis B extend their contracts with the club] (in Spanish). Real Betis. 15 March 2017. Retrieved 20 August 2017.
- Rodríguez, José María (20 August 2017). "Messi juega contra la tristeza" [Messi plays against sadness]. Marca (in Spanish). Retrieved 20 August 2017.
- Pulido, Jorge (27 February 2018). "Francis Guerrero, el amuleto del Betis" [Francis Guerrero, the amulet of Betis] (in Spanish). Vavel. Retrieved 17 March 2018.
- Espina, José Antonio (17 March 2018). "El Betis mira a Europa en la noche negra de Pau" [Betis look to Europe in Pau's dark night]. Diario AS (in Spanish). Retrieved 18 March 2018.
- "Real Betis and UD Almería reach an agreement for the transfer of Francis". Real Betis. 31 January 2020. Retrieved 1 February 2020.