For $49, today's side deal gets you one 60-minute private tennis lesson, plus a two-month membership to the fitness club, at Mercy HealthPlex (up to a $203 value). This Groupon is valid for redemption at the Mercy HealthPlex Anderson or Mercy HealthPlex Fairfield facilities. The private lesson must be reserved ahead of time.

During your hour of private tutelage (up to a $54 value) with a club pro instructor, work on forehand, backhand, and "look ma, no hands" tennis skills while pinpointing the areas of your game that need improvement. Your two-month membership to Mercy HealthPlex (up to a $149 value) then gives you the freedom to edit your own training montage with unfettered access to six indoor tennis courts, dozens of free group fitness classes per week (such as Pilates, yoga, and dance), two indoor swimming pools, a running track, sauna, whirlpool, racquetball courts, and a fitness center with a range of machines, as well as a steam room where you can gossip about Burton Gilliam amid relaxing levels of general sweatiness.

Your membership is only valid at the location where you activate it and expires two months after the date of your Groupon purchase.