The reviews weren't great of Oliver Perez's first outing in Triple A, but that may have been due to his ailing knee.

Perez has been shut down and will return to the Port St. Lucie training facility, due to tendinitis in his right knee.
For those who thought the knee was a cover for his wildness, at least this validates the injury. According to the Mets, it does not appear to be serious and surgery hasn't even been discussed.
Omar Minaya had this say:
"The knee has not fully recovered. So we're going to pull him back from his minor-league rehab, send him back to Florida and let the knee recuperate more before we get him out there and pitch again." source Newsday