Brian takes a look at the Chicago pen and provides updates on some injured closers.

Brian takes a look at the KC pen and provides updates on the laundry list of injured closers.

Brian takes a look at the Arizona pen and provides updates on the laundry list of injured closers.

Brian takes a look at the rash of injuries hitting the closing ranks.

Brian takes a look at the Arizona, Kansas City, Cincinnati and Philly pens.

Brian takes a look at the Cleveland, San Francisco and Tampa pens.

Brian takes a look at the Milwaukee, San Francisco, Houston and Arizona pens.

Brian takes a look at some recent trades along with a look at the Milwaukee pen.

Brian takes a look at some of the trade rumors circulating around MLB.

Brian takes a look at the Cincinnati and Atlanta bullpens.