2017: NYCFC’s 2017 Defensive Player of the Year arrived this past offseason from Spanish club CD Numancia and locked down a spot in Patrick Vieira’s XI in short order. Callens played every single minute of the 2017 regular season, anchoring the back line to the league’s fourth-best goal differential and the Club’s best-ever finish.
2015: Callens signed with CD Numancia for 18 months where he played 40 times.
2011-2014: Callens signed with Real Sociedad from Spain, making 86 Division B league appearances before making his debut with the first team in December 2014.
Youth: Callens emerged through the youth ranks at six-time Peruvian champions Sport Boys in his homeland.