Chavis tore a thumb ligament in Saturday's game against Single-A Columbia, Alex Speier of the Boston Globe reports.
Chavis was off to a terrific start on the young season, batting .356 with a .415 OBP in 59 at-bats. An MRI will be needed to determine whether he'll need surgery, but either way, he's likely headed to the DL for significant time. A 2014 first-round pick, the 24-year-old is likely to be sidelined until June at the earliest.