This is a speed development drill for tennis.
Players line up along the outer tram line to start the race.
Players run to the inner tram line and return back to the outer line, without stopping they run to the centre service line and return again, and then continue also run to both tram lines at the far end.
The players will touch each line with their hand before moving to the next line.
Make sure that the players have warmed up before doing this drill.
The players run at 100% effort and intensity.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.
As we enter the business end of the competition, we take a look at the remaining eight teams and the key talking points surrounding each side.