How Much Training for Junior Players?

My name is Mitch Bridge, and I am a tennis coach from Southern California, USA.  I have worked with high level junior tennis players for over twenty years.  Players from age 11 and up can thrive training 20-25 hours per week as well as participating in tournament play on the weekends as part of that 20-25 hour training week.  It is very important to blend several important parts of training into that 4 hour day.  First, a player needs one-on-one or two-on-one coaching as part of his/her daily training component.  Next he/she will need live ball hitting and sets play.  The third training component should be cardiovascular training followed by flexibility/stretching.  With these four types of training the player can develop well while keeping his/her body healthy and fit.

When the player is 14 he/she can add another hour of training to his day.  This should be 30 minutes of serves and returns and 30 minutes of strength training.  Now he/she is training like a professional with 6 of the most important training components for a professional player.  Add a weekly or bi-weekly massage and this player is going to develop extremely well.  If possible have the coach attend as many of the tournament matches as possible because the feedback and support are invaluable