With both players positioned at the baseline, one player hits all crosscourts
and the other hits all down-the-line shots. Start with both
players in their deuce corner. As soon as the crosscourter
hits the first shot, he/she has to run to the other side of
his/her court to get the partner's next shot, since it will
be coming down the ad line. The object is not to hit winners,
but to keep the ball in play. Start out hitting slowly and
work up to harder shots. This develops good movement and is
good for postioningl. You want to get "planted" and ready
to hit each shot, rather than lunging for it. It also drills
each player's forehand and backhand, obviously. Switch roles
after a while.
Good Luck on the Court!!!