Yoenis Cespedes’ return gives Mets a different headache

Yoenis CespedesFinally, Yoenis Cespedes is back after more than two months on the disabled list. It remains to be seen, however, how long he can stay healthy.

The Cuban slugger has spent more time on the disabled list the past two years than on the field. The Mets activated Cespedes, out since May 13 with hip flexor, heel and quadriceps injuries, hours before the Subway Series opener Friday.

“He felt like he was really ready,” manager Mickey Callaway said before the Mets played the Yankees at the Stadium to open the second installment of the Subway Series.

But before Cespedes — who wasn’t made available for comment before the game — had taken an at-bat, Callaway said to expect the dynamic…