The Yankees returned Winquest to the Cardinals on Monday.
The Rule 5 pick cracked the Yankees' Opening Day roster but never made an appearance for them before being jettisoned from the 40-man roster last week. The other 28 teams declined to scoop Winquest up off waivers, so he's now back in his original organization. Winquest has been used mostly as a starting pitcher during his time in the Cardinals' minor-league system, but it's not clear whether he'll return to that role at Triple-A Memphis or remain in the relief role that he'd been pitching in with the Yankees.