 On 28 June 2011, he was loaned to Segunda División team CD Numancia for the upcoming season, and appeared in his first professional match on 7 September in the second round of the Copa del Rey, saving a penalty from Ander Lafuente in a shootout victory at FC Cartagena following a goalless draw.Zabal was loaned out again the following campaign, to second level club SD Huesca.Despite only six competitive appearances and relegation, he signed a permanent deal with the Aragonese for the following year.