James Paxton has been placed on the 7-day DL (right knee) and RHP Taylor Stanton comes up from High Desert to make start tomorrow.
— Chris Harris (@CHarris731) May 29, 2012
Hopefully nothing serious
[UPDATE 11:57am]: Larry Stone with word that the team is calling it a "right knee contusion". Contusion is a fanciful word for bruise, so doesn't sound serious.