Baltimore Orioles right-hander Dean Kremer was activated from the 15-day injured checklist after recovering from a proper triceps pressure and is scheduled to start out towards the host Seattle Mariners on Wednesday.
In a corresponding transfer, the Orioles optioned left-hander Nick Vespi to Triple-A Norfolk.
Kremer, 28, final pitched on Could 20 earlier than happening the IL for a group that already misplaced three beginning pitchers to season-ending accidents: Kyle Bradish, John Means and Tyler Wells. He was 3-4 with a 4.32 ERA, 18 walks and 49 strikeouts in 50 innings over 9 begins.
In three rehabilitation begins at Norfolk, Kremer was 0-1 with an 11.42 ERA, 4 walks and 9 strikeouts in 8 2/3 innings. He has a 25-24 file in 5 with the Orioles, with a 4.35 ERA in 420 1/3 innings over 80 appearances (79 begins).
Vespi, 28, has a 3.18 ERA, two walks and 7 strikeouts in 11 1/3 innings over 10 reduction appearances with Baltimore this season.