Recovery Grade 1 strains will take 1 to 2 weeks of rest before a person can return to exercise. Normal movement, such as walking, should be possible within a few days. Grade 2 strains may take 3 to 6 weeks to heal fully. Grade 3 strains happen when most or all of the muscle is torn. The muscle can take 3 to 4 months to repair completely. https://www.medicalnewstoday.com/articles/321007.php
What's the usual recovery time for this? He's already missed a week since the Charlotte game. EDIT: Thanks, Stormy. So assuming it's a Grade 1(which it has to be if he's day-to-day), it sounds like he'll be out possibly another week.