Blue Jays reliever Tyler Chatwood was placed on the 10-day injured list with a neck strain, the team announced Friday afternoon.
The right-hander pitched for the first time in six days on Thursday, but looked off his game, allowing two walks, two earned runs and recording just two outs.
After a promising start to his Blue Jays career, Chatwood has dramatically spiraled downwards. His ERA now sits at 5.46, and he's walking 6.4 batters per nine innings.
In other moves, reliever Patrick Murphy was optioned to Triple A and both Anthony Castro and Nick Allgeyer were called up to the big club. Allgeyer was previously recalled on May 15, but didn't appear in a game for the Blue Jays.
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