Though canines love tennis for its bouncy yellow balls, humans appreciate the freedom to bark loudly with each swing and bury their favorite rackets all over the court. Become a tennis beast with today's Groupon to Whittier Narrows Tennis Center in South El Monte. Choose between the following options:

• For $20, you get a one-month individual membership to Whittier Narrows Tennis Center (a $50 value).
• For $35, you get three 90-minute clinic lessons from an iTennis instructor at Whittier Narrows Tennis Center (up to a $75 value).
  
  

Whittier Narrows trains and nurtures novice and advanced tennis players with its roster of iTennis lessons, USTA adult league teams, and well-kept courts. Each of Whittier Narrows’ 16 courts are painted U.S. Open shades of blue and green to emulate professional play and increase ball visibility, and are fully lighted for nighttime and solar eclipse play. Tennis center memberships entitle players to complimentary perks such as a one-hour drill clinic, a racket demo program, weekly stroke clinics, and free ball machine rental (during off-peak hours), as well as a 10% discount in the pro shop and discounts on classes. After rinsing away sweat and lingering grunts in the men’s and women’s locker rooms, an airy member lounge invites athletes to relax on a leather couch and enjoy wireless Internet, a flat-screen television, and refreshments.

iTennis, founded by former U.S. Junior National Champion and Wimbledon competitor John Letts, teaches adults basic and advanced tennis techniques. Whittier Narrows’ resident iTennis instructors, Andy Chang and Morisa Yang, lead lobbers through a series of rigorous clinic lessons, mastering basic serving in Beginning I, and moving along to drop shots, pirouettes, and lobs in Beginning II. Intermediate II focuses on point play, king of court competitions, and jester of the net duels, and the Advanced sessions hone in on footwork and constant movement.