Per John Blake on Twitter, the Rangers have officially announced that Yu Darvish will not make his scheduled start on Thursday, August 23, 2012. As a precautionary measure, the Rangers are instead moving Darvish's next scheduled start to Tuesday, August 28, 2012. Roy Oswalt will instead start for the Rangers on tomorrow.

Darvish is being scratched because of issues with his right quad, which flared up during his workout yesterday. Oswalt started in place of Ryan Dempster in Toronto on Saturday, and by stepping into the rotation tomorrow, Oswalt will be working on his regular four days rest.