You can google just about any player and see some portion of his training on video.
It is impressive just how hard they train.
Here's how a Scot trains:
Andy Murray Footwork Training On Grass 2012 http://www.youtube.com/watch?v=zaRBVUdEpnY
Core excercise with Andy Murrayhttp://www.youtube.com/watch?v=eJi_lkoURf4
Fitness Work 2007 and 2008 http://www.youtube.com/watch?v=06EVdHZ8gjI
Miami training block 1 http://www.youtube.com/watch?v=YerH0-8n_0w
There seems to be a preponderance of outdoor training. (No surprise as most pros keep their gym work a "secret" so as not to let the competition know exactly what they are up to.)
Still, you can get hints at their indoor work from articles such as this:
Andy Murray's strength workout http://www.menshealth.co.uk/building...rength-session
And hints at their running training with articles such as this:
Andy Murray's track session http://www.menshealth.co.uk/fitness/...-track-session
Of course they all work with trainers and are constantly changing their routines based on schedule/ time off until the next tounament, health/soreness, and adjustments to address "relative weaknesses".
What type of training are you doing?
Is it something like this?
Sports Fitness Advisor Tennis Training Section http://www.sport-fitness-advisor.com...-training.html
Are you doing ten consecutive 400 meter runs at 85 second intervals like Andy?