Saborío signed with Major League Soccer club Real Salt Lake in March 2010. He made a huge impact in his first season in Salt Lake: RSL boasted the highest-scoring offense in MLS in 2010 (45 goals); Saborío led the way with a team-high 12 tallies. For his efforts, he earned the MLS Newcomer of the Year award. He also starred for the club in the CONCACAF Champions League tournament, scoring eight goals as Real Salt Lake advanced to the championship round.