Jansen was placed on the 10-day injured list Monday with a strained left oblique, Arden Zwelling of Sportsnet.ca reports.
EDGE Analysis
Jansen was 4-for-7 with two solo home runs and a double through the first three games of the season, but he'll now be sidelined by the oblique strain. It remains unclear how long the 26-year-old will be unavailable, but he'll be eligible to be activated from the injured list April 21.