Misch still has options and was recently demoted to AAA, but the Giants were in a 40 man roster crunch, they had to try and sneak him through waivers to make roster room.
The 27 y/o left hander has played four partial seasons in the majors with the Giants, he's appeared in 38 games ( 11 starts ), 98 total innings with an ERA of 5.20. Most of his major league experience has been as a reliever but he's projected as a #4 starter.
Misch will report to AAA Buffalo, to make room for him on the 40 man roster, the Mets placed Billy Wagner on the 60-day DL...
(Mets) claimed lefty reliever Pat Misch off waivers from the Giants after putting J.J. Putz on the disabled list today. source NY Post