Chavis was called up from Triple-A Pawtucket on Friday, Ian Browne of MLB.com reports.
The 23-year-old joins the big-league club ahead of the weekend series in Tampa Bay with a serious chance at heavy playing time, as Dustin Pedroia (knee), Eduardo Nunez (back) and Brock Holt (eye) are all on the injured list. Chavis has been receiving starts at second base with Pawtucket through the first few weeks of the season and will seemingly have those skills tested at the major-league level. The Red Sox's top prospect slashed .250/.354/.600 with four home runs in 12 games at Triple- A.