Schreiber, who will be a part of the Tigers' 60-man player pool this season, will compete for a back-end bullpen spot.
Schreiber was optioned to Triple-A Toledo back in March before play was suspended, and he was likely to bounce between the minors and the majors in a normal year. Now with the minor-league season canceled, the 26-year-old is among 30 pitchers jockeying for playing time in Detroit. If he pitches well in camp, he could snag a back-end bullpen spot, though his fantasy appeal is limited.