There have been some updates regarding the return of Humberto Quintero, via Twitter:
From Alyson Footer (and here):
Spotted: Quintero practicing jumping up out of crouch to field dribblers in front of plate. Throwing to first, second and third. No timetable for Q's return but this is an encouraging sight.
And from Steve Campbell (and here):
Quintero said he will begin a medical rehab assignment with Okla City on Friday, joining team in Memphis. Plan is for Quintero to build up endurance so he's ready to play regularly after All-Star break.