There are no substitutions in Tennis unless you think of some of the team formats. Mostly, you are on your own and if you get injured during a doubles match your team is still finished unless you can park yourself out there while your partner plays the match while you step in to serve and receive when your turn comes.
Del Potro Regrets - wrist injury left him as an also ran though he felt he could have gone head to head with both Rafa and Fed.
Djokovic - dropped from the top
Injury taught him a lesson
Elbow not 100% going into Australian
Reassessing his injury after exit out of Australian
Shattered Dreams for Murray and Djokovic
Overuse Injuries plague Tennis Stars
When it comes to playing tennis think of the long term. If you over practice and over play you will eventually wear down your body and find more injuries.
Also, avoid activities that can lead to off court injuries because these will still follow you onto the court.
How to help prevent injures from becoming disabling.
Stop and treat an injury when it starts and don't wait until it becomes chronic. Use whatever tools are available such as protective braces, tapes, and elastic bands. Change your equipment to help protect yourself. For instance, some rackets are better for bad elbows than others.
Use anti-inflammatory medications when needed to help reduce overuse injuries that are beginning to show up.
Work on defending your body against injuries by maintaining strength and flexibility.
For Back Muscle Injuries
To help protect a tender wrist
