The Toronto Blue Jays have optioned pitchers Justin Shafer and Brock Stewart to the Triple-A Buffalo Bisons and designated Nick Kingham for assignment, the team announced on Sunday.

The moves allow the Jays to activate Clay Buchholz from the injured list to make Sunday’s start against the Seattle Mariners and re-add closer Ken Giles to the roster from the paternity list.

Buchholz last pitched for the Blue Jays on May 5, he has been on the 60-day injured list with a shoulder injury.  The 35-year-old has an 0-2 record with a 6.57 ERA in five starts with the Jays.

Kingham posted a 3-1 record with a 3.00 ERA in 11 games out of the bullpen for the Blue Jays.  He also has 14 strikeouts and eight walks in 21.0 innings.

The 27-year-old is in his first season with the team and has also appeared with the Pittsburgh Pirates.