Born in Toledo, Castile-La Mancha, Guerrero started his senior career with Albacete Balompié's reserves, spending two full seasons in the Tercera División after having represented a host of clubs as a youth.

[16] On 13 June 2018, Guerrero moved abroad for the first time in his career after agreeing to a three-year contract with Olympiacos FC, with a rumoured annual salary of €400,000.

[19] On 30 July 2019, Guerrero scored after a solo run in the 4–0 home victory over FC Viktoria Plzeň in the second qualifying round of the UEFA Champions League.

[22] On 4 September 2020, Guerrero joined EFL Championship side Nottingham Forest for an undisclosed fee;[23] manager Sabri Lamouchi was reportedly not interested in signing him but felt that he had no choice but to agree to the transfer as it came under the recommendation of Evangelos Marinakis, who owned both clubs.

[30] Halfway through the contract, he was released so the Balearic side could sign former Spain international Nolito and he returned to Greece's top flight at OFI Crete FC.