There are two players (B and C) at the baseline on one side, and a single player (A) on the opposite side, baseline. (see graphic below)
Player A will keep a rally going against the two opposite players hitting only topspin shots while players B and C will hit back only slice groundstrokes.
Rotate players’ places after 5 minutes.
Notes:
– all players should cover singles court only;
– make it cooperative drill where all work on their respective shot control.

two for slice one for topspin