[2] Mina made his first-team – and La Liga – debut for them on 16 February 2013, coming on as a substitute for Iago Aspas in the 66th minute of a 3–1 away defeat against Getafe CF.

[5] On 11 April 2015, Mina scored four goals in a 6–1 home rout of Rayo Vallecano,[6] becoming the youngest player in the last 80 years to do so in the Spanish top tier and the first from Celta since 1979.

[9] On 18 February 2016, in only the first 45 minutes, Mina scored twice and provided three assists in a UEFA Europa League last-32 tie against SK Rapid Wien, in an eventual 6–0 win also at the Mestalla Stadium (the half-time result was a competition record).

[12] The following season, he netted braces in Copa del Rey victories over CD Ebro (round of 32)[13] and Sporting de Gijón (last 16)[14] as his club picked up their first honour for 11 years, being unused in the 2–1 final defeat of Barcelona on 25 May 2019.

[30][31] On 4 May, Mina was sentenced to four years in prison for sexual abuse, being found not guilty of the more serious offence due to lack of violence;[32] he was ordered to pay €50,000 in compensation.

[33] The judge found it proven that the victim had returned to the footballers' caravan to spend the night with Goldar, when Mina entered undressed and blocked the exit.