PITTSBURGH — Jose Reyes‘ scheduled return Friday is now an open-ended question after the shortstop suffered a setback yesterday in his rehab of that mysterious calf injury while the Mets were being rained out here against the Pirates.

In the notes, the Mets’ swine-flu scare appears to be over now that Carlos Beltran is back from his equally mysterious stomach ailment, although the club still doesn’t know the fate of the SNY producer sent home with a possible case of the H1N1 virus.