Despaigne was designated for assignment Monday, Rich Dubroff of CSN Mid-Atlantic reports.
Despaigne owns a 3.87 ERA across 88.1 innings at Triple-A Norfolk this season and didn't profile as anything more than a potential spot starter or long reliever for the big club, so he was deemed expendable when a 40-man roster spot was needed for reliever Brian Duensing, who was activated from the 60-day DL in a corresponding move. Assuming Despaigne goes unclaimed off waivers, he'll likely stick in the organization as a depth arm at Triple-A.