It certainly isnt a benefit to anyone if they are going to be too physical with each other as obviously injuries and even players falling out can occur. I would tackle this by doing less physical elements to your training for instance leave any matches between the players to maybe the last five minutes of training and for few weeks if possible work with a ball for each player on dribbling, control etc or in pairs for heading etc. If teamwork based drills can be introduced it could make your sessions a lot easier to handle, although there is a thin line....

There is a lot of contradictory nonsense at the moment on one hand schools are rearranging their sporting cirriculum so "sports day" isnt competetive so there are no winners or losers and in younger age groups in kids football results dont matter so again its all about pure enjoyment, BUT.....then people moan the national game (in England) isnt competetive enough internationally and there arent enough good young hungry players coming through, sorry but in my eyes you cant have it both ways, in the big scheme of things i believe competetivness should be encoureged if its done in the correct and sporting way, if sport becomes just for enjoyment and not about winning or achieving then we will have a very boring, passionless game and the reaosn why we all love it so much will be lost.

Back to the subject of your players though even simple routines like dribbling around cones where there is no physical contact but the players are still learning and improving their technique and not hurting each other could be the way forward until they do start to heed your words about training is all about learning then more competetive games in training can be re - introduced.

Slightly changing the subject but also relevant though is a lot of the most physical and successful players in the world have that competetive edge and would always have had it, you take that edge away you lose half the player regardless of technique so i wonder how many Roy Keanes, Patrick Viera's etc etc this "non competetive" sporting world our youngsters are growing up in will produce?!?!? 

After the game that same coached praised her kids for playing so agressively.

I have talked to enough people who run pro camps in Europe where that kind of behaivour is EXPECTED but for the most of us who coach house league or local teams its a very, very fine line.

I've seem alot of team's coaches focus on team play, result and neglect the development of correct attitude and behavior in the game.

this need to take a very long process to achieve. it's hard to explain here. one of the solution is setting up team's rules on and off the field. young kid actually like rules. do not let those poor behavior players cross the behavior boundary line. young kids always try to test where is the maximal behavior boundary line is. with team rules, they know they need to follow and also show self control. example, time out for poor behavior. about few mintues. also alot of soccer book you can read.

some of your player behavior in training is consider bully. if you let bully behavior continue. this will affect team progress, and also affect other players.

Phuabh

Now I'm fighting to get the other kids back under control because of the last game. Like I said its a very, very fine line. Too little agressiveness you may as well take them off the field and teach them knitting too much aggressiveness and they're sitting a game or two or the rest of the season like the two monsters and the coach that went on a spree against my kids.