Bickley Blast: Diamondbacks GM Mike Hazen making big moves to tighten up the bullpen

With the addition of reliever A.J. Puk, Diamondbacks general manager Mike Hazen is doing everything he can to strengthen their bullpen, much to the delight of Dan Bickley, who knows the team's success hinges on strong relievers.
Video: Felisa Cárdenas and Ed Cole/Arizona Sports
Photo Credit: Megan Briggs/Getty Images, Carmen Mandato/Getty Images, John E. Moore III/Getty Images, Elsa/Getty Images, Rich Storry/Getty Images, Harry How/Getty Images, Christian Petersen/Getty Images, Jamie Squire/Getty Images, Sarah Stier/Getty Images, Tim Nwachukwu/Getty Images, Mitchell Layton/Getty Images, Mike Stobe/Getty Images, Eric Espada/Getty Images,
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