Michael McKenry dealing with stiff knee

Pirates catcher Michael McKenry's status is uncertain as he deals with a stiff knee, MLB.com reports.

McKenry's knee "felt stuck" after an awkward slide into second base in Saturday's game. McKenry is undergoing treatment on the knee. It is unclear if he will need a stint on the disabled list. Tony Sanchez has been called up to serve as catcher depth in the meantime.