So maybe it’s all connected, and P.J. Conlon got No. 60 instead of No. 29 because the Mets were secretly working on a Matt Harvey-for-Devin-Mesorasco deal all along, and had a guy already stitching a 29 jersey with his name on it. Until last night, when he made his Mets debut as a pinch hitter, Mesorasco had worn 39 for the Reds.

Anyway, Mesorasco, like Harvey, is a former top draft pick who’d become somewhat worthless for their clubs but still have contracts to play out. It practically goes without saying that Tomas Nido, whom Mesorasco pinch-hit for last night, will go back to the minor leagues and work on his game.

There more to this as well. Todd Frazier is on the disabled list with a hamstring and it’s widely speculated that Luis Guillorme will be up. That’s significant inasmuch as Guillorme — not Conlon — wore No. 60 in Spring Training. Conlon by the way was swapped out for Corey Oswalt following his appearance.

Here’s my thought, with Guillorme due to arrive and Nido likely in for a long spell of seasoning, let’s put Guillorme in the newly available No. 3, which befits his middle-infielder profile and isn’t far off from his Las Vegas No. 13 jersey.

Finally we’d like to wish chubby Matt Harvey all the luck he has coming with the last-place club and lifeless downtown he deserves in Cincinnati. He might not even get No. 33 there, as Jesse Winker wears it, and he has a promising future.