Dynamite Defense

This is my current boomstick. What's yours?

This doubles drill is from Coach Helle Viragh on the Tennis Resources site.

Four players take the court; two up, two back. The two up should be slightly staggered. Coach feeds the first ball and players play out the point. No winners, please! Defensive team (team playing back) goal is to keep everything in play. Any shot is allowed by the defensive team. Goal is to strengthen the defensive game, avoid giving the offensive team an easy putaway, or force an error by the offense.

Couple fun aspects of this game:
Scoring fun: any ball touched saves point for team touching it. In other words, if someone can get a racquet on the ball, no point is awarded. Encourages effort! Touch must occur before second bounce.
Positional fun: if defensive team hits a great lob and offensive team gets pushed off the net, teams' positions are reversed and defensive/baseline team may take the net as they push their opponents back with a well-placed lob. So this game could swing back and forth depending on ball placement and team movement.

Coach Helle didn't say in the video so let's just add our own scoring strategy here. First to 7, first to 11 by 2, whatever suits your fancy (and your students!).