Thaiss received an invitation to major league spring training Thursday.
This comes as no surprise, as Thaiss has established himself as one of the Halos' top prospects following a strong professional debut that saw him make the leap to Low-A and hold his own. The 21-year-old will likely start 2017 either at Low-A or High-A, but if he continues to display outstanding plate discipline while batting in the upper-.200s, he could move up further in the organization by the end of the season.