This blogpost is the first one on physical training and I wanted to start with the most important part of the body for a large number of sports, including tennis, which is the CORE. If you like my posts you could sign up for email alerts using the white box on the right hand side of this page.
We try to train the core every day as its not like training the calve or bicep in that the body needs at least 24 hours recuperation before another session. The core can be worked everyday with one rest day a week. We sometimes do 20-30 minutes of core and sometimes 2-3 hours of core! It's key for explosive strength, balance, agility and preventing injuries.