The Chicago Cubs made a change to their pitching staff on Wednesday morning as Jason Hammel was placed on the team’s bereavement list.

Hammel, who has an 11-5 record with a 3.07 ERA in 21 starts with the Cubs this season, will be replaced on the 25-man roster by reliever Justin Grimm. Grimm was sent to the minors last week in a series of moves designed to bring starting pitcher Brian Matusz up to the majors for a spot start.

The roster move means that Hammel will be out for at least the next three days, with players able to spend a maximum of seven days on the bereavement list. The starter is expected to make his next appearance for the Cubs, which is scheduled for Tuesday against the Los Angeles Angels at Wrigley Field.

Hammel had an excellent outing for the Cubs on Tuesday against the Miami Marlins, outdueling Jose Fernandez in a 3-2 Chicago victory. The starter gave up zero earned runs and struck out three batters in six innings of work as the Cubs secured a series victory and built up their divisional lead to nine games over the St. Louis Cardinals.