Vosotros played collegiate basketball at
DLSU where he first suited up for the
Archers in
2010 and first earned his reputation as a
clutch player. In his sophomore season with the Archers, he averaged 6.8 ppg while developing into a deadly shooter from three-point range. The following season, he earned the starting "two" spot and became the team’s second leading scorer with 10.5 points per outing, while converting 29 team-best three-point conversions. In
2013, he posted averages of 14 points (second behind
Jeron Teng), five rebounds, two assists and one steal per game, while leading the Archers to their first championship since
2007. He also steered the Archers to the PCCL championship that same year. He last played for La Salle in
2014. ==Amateur career==