please exercises for 17 years boy defending?

please exercises for 17 years boy defending handball 3+2+1 sistem

Your answer is in the database of Sportplan CoachingHandball.
An elaborate collection os drills present over there.

Figure out what techniques a defender must have at every position.
Wing defenders - offensive players on position 2 - defender in front - libero (last defender) : describe their tasks and add the techniques. Drills should be the result of your thinking.

Examples:
-1:1 duels on every position
-drills with cooperation of defender and libero
-drills in which attackers try to go into 2:4 positions