Rafael Nadal missed seven months last year with a knee injury. That knee will face its toughest test when he plays in the French Open, his first Grand Slam event since his return.

Subscribe to the Times Video newsletter for free and get a handpicked selection of the best videos from The New York Times every week: http://bit.ly/timesvideonewsletter

Subscribe on YouTube: http://bit.ly/U8Ys7n

Watch more videos at: http://nytimes.com/video

---------------------------------------------------------------

Want more from The New York Times?

Twitter: https://twitter.com/nytvideo

Facebook: https://www.facebook.com/nytimes

Google+: https://plus.google.com/+nytimes/

Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch. On YouTube.

Analysis of Rafael Nadal's Knee Injury (Computer Animation)
http://www.youtube.com/user/TheNewYorkTimes

Duke Sports Medicine Specialists Jocelyn Wittstein, MD, Janna Fonseca, ATC, and Michael Messer ,PT, present on Soccer Injury Prevention including Concussion Management and the 11+ program that significantly reduces ACL tear rates in soccer.

Observation of both jugular veins can provide a reliable indication of the volume and pressure in the right side of the heart since internal jugular veins pulsate in response to phasic changes in right atrial pressure. Proper positioning of the patient to increase the effects of gravity enhances distention of the jugular veins and, therefore, increases the ability to observe venous pulsations.

A video showing the PRK laser eye surgery

How to obtain a blood sample

Hysterectomy done laparoscopically is a relative new approach to the classical hysterectomy procedure, the advantages are better anatomic views, less bleeding, less surgical time and less recovery time

Eyes,ears,nose and throat exam

assessment of the extra-ocular muscles

Surgery during a Pancreatectomy. One can see the pancreas half extracted. This is Experimental Surgery, taken during a Pancreas transplantation

Laparoscopic Roux-en-Y Gastric Bypass with Hand-Sutured Anastomosis. Dr. Dennis Smith, Advanced Obesity Surgery, Marietta, GA

Meningeal Irritation Signs from the USMLE collection

Cerebellar functions of the upper limbs from the USMLE collection

different aging and other skin spots can be treated succesfully with Co2 laser.

Loyola Respiratory System Exam Part 2 A video from Loyola Medical School, Chicago showing the medical and clinical examination of the respiratory system.

Part 5: from Loyola Medical School, Chicago showing clinical examination of the neurological system.

Tie

Subcutaneous Pattern Suture

Use of Skin Stapler Remover

Fistulectomy procedure surgery