Possible Clues:

• Problem affecting services?
• Lateral epicondylitis (and a possible injury hinted at by the ends of 17-, 24-, 37- and 47-Across)
• Joint complaint of serving men and women?
• Problem at the joint for racketeer?
• Sampras shuns it
• Game the Spanish concede, suffering from this, perhaps
• Wine snob let drunk suffer with this affliction
• Court woe
• One rarely rallies with such a malady
• Tendon problem intense blow might produce