Hall of Fame pitcher Randy Johnson's Arizona mansion up for auction

Randy Johnson struck out nearly 5,000 batters over the course of his 22-year Hall of Fame career. 

Add another one to his resume. Only, this one will sting in the pocketbook. 

Johnson's Paradise Valley, Arizona, estate, previously listed for $14.5 million, is now being sold to the highest bidder after years of failing to find a buyer.  

Originally listed on the market on Sept. 2014 for $25 million, the seven-bedroom, 12-bathroom and 25,000-square-foot Tuscan-style mansion on 5 acres will sell without reserve -- meaning there is no minimum bid -- at a live auction on Jan. 31. Bidding begins on Jan. 29. 

Here's a look at some of its features:

• Home theater with tiered seating.
• A professional recording studio, a music room with real bank vault doors to shut out the sound. 
• A fire pole between the first floor and basement.
• A fitness center and guest house.
• A resort-style pool area with a cabana and fire pit.
• Tennis and basketball courts.
• Eight-car garage and a three-car display garage with mechanics area.

According to baseball-reference.com, Johnson earned more than $175 million in career salary.