Now 24 years old, Puello ranked as highly as third among Mets prospects at one point, per Baseball America, who also ranked him 77th among all prospects prior to the 2010 season. Puello, however, provided little in the way of offense from 2010-12 at the Class-A level. Hie numbers ticked upward in 2013 at Double-A, but he was also suspended for PED use that season in connection with the Biogenesis clinic. Puello hit just .252/.355/.393 in a very hitter-friendly environment at Triple-A Las Vegas the following season upon his return.
The Mets placed Puello on outright waivers prior to the season, and the out-of-options outfielder cleared, though the team had to rescind the outright assigmnent and place him on the big league 60-day disabled list after an x-ray revealed a stress fracture in his back. He’s accrued Major League service time while on the 60-day DL this year.