He made 20 appearances for the Pioneers and scored 4 goals before tearing his ACL and meniscus early in his sophomore year.

[8][9] Following his junior year, Garza was signed by Major League Soccer to a Generation Adidas contract and forwent playing his senior season at UCSB.

[10][11] He was drafted in the first round, sixth overall, by San Jose Earthquakes in the 2012 MLS SuperDraft, two spots behind Gaucho teammate Luis Silva.

[15] While playing for Arizona United, he caught the attention of Ezra Hendrickson and a conversation with Sigi Schmid ensued, leading Garza to Seattle.

Following his conversations at the end of the prior season, Garza went on trial with Seattle Sounders FC 2 of the United Soccer League in February 2015.

[21] Garza was named to the U-20 team by Thomas Rongen for the 2009 FIFA U-20 World Cup, but had to be replaced due to his knee injury suffered with Denver Pioneers.