Hu will become a full-time reliever upon his return to Triple-A Durham, Marc Topkin of the Tampa Bay Times reports.
Hu has made two appearances out of the Rays bullpen this year, but he had been used exclusively as a starter in the minors. The Rays obviously liked what they saw of him in the bullpen, and with their starting rotation fairly set in stone, the club has decided to make the switch. That's unfortunate news for anybody who was holding Hu in a keeper league hoping he could start, but the Rays bullpen isn't particularly deep, so it's possible he could work his way into the closer's role if he plays well in his new job.