According to the Diamondbacks website as Peguero gets called up to come into the pen'

Linkage

It's been discussed over a few other threads but this move seems to make sense after yesterdays meltdown :(

Hopefully he can work on his mechanics for a month or so and make it back with the roster expansion, despite his recent struggles I still see alot of potential out there in that guy.

Petit unsurprisingly will make Owings next scheduled start and the guy does deserve it on the basis of recent displays.

[Wimb posted this while I was working on my piece reporting the same, so let's combine the two under one heading. Jim]

Jack Magruder reports so this afternoon. I imagine this doesn't come as too much of a shock - Petit will replace him in the rotation, as of Saturday, with Jailen Peguero getting to step up from Tucson and move into the bullpen. I imagine that will likely be a short-term assignment, with Juan Cruz almost ready to come back. How long Owings stays down with the Sidewinders is harder to say. There has clearly been something very wrong with him over the last couple of months: is it mechanical or mental, and in either case, is it fixable?

I certainly hope so: it's a shame that a season which started with such promise has now turned around so radically. However, he can take comfort from past history - Jose Valverde was similarly optioned down to Tucson after imploding during the 2006 season, and returned in full force, to lead the majors in saves for 2007. Fingers crossed Micah can be similarly "cured", sort out his command, work on his third pitch, and return to the good form he showed for us during April.