If you’d like to swim in Mark Wahlberg’s pool, box in his ring, or work out in his gym, you can - at a discount. Boston’s own Wahlberg has put his Beverly Hills home up for sale again, this time for $13.9 million instead of the almost $16 million he was asking for in 2008. The home is listed with Keller Williams realtor Hillel Sanowicz. The listing says the home has a “chef’s kitchen, formal dining, and living rooms fit for entertaining, all with beautiful canyon views and dramatic sunsets, grand 35mm digital projection theater/screening room, detached professional two story gym with boxing ring, sports court fit for basketball, tennis, or racketball. Property also has a putting green, lavish waterfall pool with grotto, and cabanas, all on park-like grounds.’’