A pair of highly talented Athletics lefties returned to competitive action yesterday after long layoffs. Prospects A.J. Puk and Jesus Luzardo each began injury rehab assignments last night, appearing for the High-A Stockton Ports.

That news is quite promising on its own. Better still for the A’s, the southpaw duo looked to be in fine form. As Tyler Maun of MiLB.com writes, both hurlers impressed in 33-pitch piggyback appearances.

Puk came out blazing in his first competitive work since the 2017 season, working in the upper nineties with his acclaimed heater. He ultimately ran up four strikeouts in two frames while permitting one run on one hit — a home run from highly regarded Giants prospect Heliot Ramos.

It’s excellent to see that Puk has regained his arm speed since undergoing Tommy John surgery. He underwent the procedure in April of 2011, temporarily halting what was likely to be a quick run through the Oakland farm system