Team sports initiate friendships, which come in handy when you need help escaping a feisty volleyball net. Form an athletic kinship with today's Groupon for league registrations at ZogSportsDC. This Groupon is valid only for players 21 and older, and customers must register online. Choose between the following options:

• For $45, you get an individual full-season sports-league registration (up to a $105 value).
• For $499, you get a team full-season sports-league registration (up to a $1,100 value).
  
  

Created by Rob Herzog with the aim of galvanizing community health and cohesion, ZogSportsDC wrangles coed athletes together for games of volleyball, soccer and more, facilitating friendly contests while raising funds for local charities. Participants set up an online account, where they indicate their solo or team status and get matched with a league that echoes their competitive drive and ability to coordinate knee-high socks. Teams also select a charity to which a portion of their league fees will go, adding to the more than $1 million that has been donated since ZogSports' 2002 inception.

Make interceptions in a touch-football league, increase ball-dribbling skills in a basketball league, or practice phone-call avoidance skills in a dodgeball league. Following lively meets in the District and surrounding locales, team members head out to nearby happy hours to socialize and compare sports-announcer impressions.