|Full name||Christian Alfonso López|
|Date of birth||2 May 1989|
|Place of birth||Barcelona, Spain|
|Height||1.77 m (5 ft 10 in)|
|Playing position||Attacking midfielder|
|2013–2014||→ Alcorcón (loan)||17||(1)|
|2014–2015||→ Girona (loan)||12||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 14 May 2017.
Born in Barcelona, Catalonia, Alfonso joined RCD Espanyol in 2002 at the age of 13 from neighbours CE L'Hospitalet. Two years later, however, he returned to his previous club, with which he made his senior debuts, appearing in two Segunda División B games in the 2007–08 season as his team eventually suffered relegation; he was an essential first-team unit in the subsequent promotion, then scored ten goals from 30 appearances to help them retain their status.
In late March 2011, Alfonso moved to Espanyol again, alongside teammate Cristian Gómez – the transfer being effective as of July – initially being assigned to the B-side. On 2 October 2011 he made his main squad (and La Liga) debut, playing 16 minutes in a 0–4 home loss against Real Madrid.
On 15 August 2013, Alfonso joined AD Alcorcón in Segunda División, in a season-long loan deal. He scored his first professional goal on 1 September, netting the first in a 3–0 home win over Recreativo de Huelva.
- Christian Alfonso; El Blog de L'Hospi, 25 November 2010 (in Catalan)
- L’Espanyol B fitxa Cristian Alfonso i Cristian Gómez de l’Hospitalet (Espanyol B signs Christian Alfonso and Cristian Gómez from L'Hospitalet); BTV Notícies, 28 March 2011 (in Catalan)
- Higuain gives Mourinho plenty to ponder; ESPN Soccernet, 2 October 2011
- Cristian Alfonso jugará en el Alcorcón cedido por el Espanyol (Cristian Alfonso will play in Alcorcón on loan from Espanyol); Diario AS, 15 August 2013 (in Spanish)
- El Alcorcón se apunta al liderato tras golear al Recreativo (Alcorcón poised to lead after thrashing Recreativo); Marca, 2 September 2013 (in Spanish)
- Christian Alfonso, cedido al Girona (Christian Alfonso, loaned to Girona); Marca, 29 August 2014 (in Spanish)
- Rescissions de contracte de C. Gómez i de Christian Alfonso (Contract terminations of C. Gómez and Christian Alfonso); RCD Espanyol, 31 August 2015 (in Catalan)