Now 26 years old, Musgrave entered the professional ranks as an eighth-round pick of the Rockies in 2014. He received his first promotion to Colorado in 2018 despite posting less-than-stellar numbers in the hitter-friendly Pacific Coast League in the preceding couple years. With 44 2/3 innings as a rookie, Musgrave finished seventh among Rockies relievers in that category, though he struggled to prevent runs in that span. Musgrave could only muster a 4.63 ERA/5.31 FIP with 6.45 K/9, 4.43 BB/9 and a 38.3 percent groundball rate then.
Last season went down as an injury-shortened one for Musgrave, who battled elbow issues. His production in Colorado took steps forward, though it was in a much smaller sample of work. Across 10 innings, Musgrave allowed four earned runs on nine hits, seven walks and 12 strikeouts. He mostly spent the year in Triple-A Albuquerque, where he pitched to a whopping 10.13 ERA over 24 frames.