The Rockies optioned Thompson to Triple-A Albuquerque on Tuesday.
Thompson went 1-for-8 with a strikeout after receiving his first call-up to the majors Friday. He'll now be pushed back to the minors as a result of Tyler Freeman's return from paternity leave, but Thompson is a candidate to return to Colorado later in the year. The 24-year-old outfielder has slashed .344/.491/.496 with four homers, 27 RBI, 27 runs scored and eight steals across 36 games at Triple-A.