Tennis shoulder pain usually comes from the serve and overhead smash, which take the arm to its most extreme position at high speed many times a match. The common sources are the rotator cuff tendons, the back of the shoulder joint and labrum, and the muscles that control the shoulder blade. Most overuse cases settle over 6 to 12 weeks with fewer serves, technique changes and strengthening, often while still playing some tennis.
Badminton, squash, padel and pickleball load the shoulder the same way through overheads, smashes and high volleys.
Key takeaways
- The serve is the main load: the arm reaches full cocking, then slows down after contact, and both phases stress the shoulder.
- Common problems: rotator cuff tendinopathy, posterior shoulder tightness, labral irritation and shoulder blade control problems.
- Power comes from the legs and trunk: a serve that relies on the arm alone puts more load on the shoulder.
- What helps: fewer serves for a while, a smoother kinetic chain, rotator cuff and shoulder blade strength, and keeping internal rotation range.
- Typical timeline: many players see clear change in 6 to 12 weeks; labral problems and longer-standing tendon pain can take 3 to 6 months.
The common problems, and what sets each apart
Shoulder
- Rotator cuff tendinopathy: an ache at the side of the upper arm during and after serving, often worst at the moment of contact or reaching up for a high ball.
- Posterior shoulder tightness and internal impingement: pain at the back of the shoulder in the fully cocked position, just before the arm swings forward. Many overhead players lose some ability to turn the arm inward on the playing side, measured as glenohumeral internal rotation deficit (GIRD).
- Labral irritation or tear: a deep pain with clicking, catching or a dead-arm feeling during the serve, sometimes with loss of serve speed.
- Shoulder blade control problems (scapular dyskinesis): the shoulder blade does not move smoothly on the rib cage, often seen as the inner edge lifting away when the arm lowers. It often sits alongside the other problems.
Neck and upper back
- Neck strain from looking up: tracking the ball toss and lobs means repeated neck extension, often felt as an ache at the base of the skull or top of the neck.
- Upper back stiffness: a stiff mid back limits the trunk rotation and arch of the serve, so the shoulder does more.
How each racquet sport differs
- Tennis: the serve carries most of the shoulder load. A heavier racquet or tighter string tension increases the load at contact.
- Badminton: high numbers of overhead clears and smashes, swung very fast.
- Squash: more forehand and backhand drives than overheads, but reaching shots in the back corners load the shoulder at the end of its range.
- Padel: overhead smashes and the bandeja, often played by newer players without much overhead conditioning.
- Pickleball: lower load per shot, but many players take it up later in life and play several times a week from the start. Overhead smashes and long sessions are the usual triggers.
Early warning signs
- Serve speed drops: you cannot hit through the ball, or you start pushing serves.
- Pain the next morning: an ache after a match that is still there the following day.
- Pain reaching behind your back: tucking in a shirt or reaching to a back pocket gets harder on the playing side.
A sore serving shoulder is often a signal from the legs and trunk as much as from the shoulder itself.
Load and technique changes
- Count your serves: cut full-effort serves by about half for 2 to 4 weeks.
- Use the whole chain: knee bend, hip and trunk rotation should generate most of the power.
- Check the toss: a toss that drifts behind the head forces extra arching and shoulder strain. A toss slightly in front keeps the arm in a stronger position.
- Equipment: a lighter racquet or slightly lower string tension can reduce load at contact.
- Strength work: two to three sessions a week of rotator cuff exercises, especially for the muscles at the back of the shoulder that slow the arm after contact, plus shoulder blade work such as rows.
- Keep internal rotation: a gentle cross-body stretch or sleeper stretch for the back of the shoulder, if it is comfortable and a PT has shown you how.
A return plan by stage
- First 1 to 2 weeks: play comfortable groundstrokes. No serves or smashes. Start strength work.
- Weeks 2 to 6: add easy serves in small numbers, such as 10 to 20 at half speed, building by about 10% a session if pain stays mild and settled by the next morning.
- Weeks 6 to 12: build to full-speed serves, then overheads, then match play.
- Ongoing: most players return to full matches over 2 to 3 months; labral and longer-standing problems can take 3 to 6 months.
Where else this could be coming from
- The neck: a pinched nerve in the neck (cervical radiculopathy) can cause pain over the shoulder blade or top of the shoulder, often with tingling, numbness or weakness down the arm toward the elbow, wrist or hand. Looking up at the toss may set it off.
- Suprascapular nerve: a nerve along the top and back of the shoulder blade can be irritated in overhead players, causing a deep ache at the back of the shoulder and weakness turning the arm outward.
- The elbow: pain centered at the outer or inner elbow that spreads toward the upper arm usually belongs to the elbow, wrist or hand rather than the shoulder.
Call your local emergency number or go to the emergency department if
- Chest symptoms: chest pressure, breathlessness, sweating or nausea with shoulder, arm or upper back pain on court.
- A dislocation: the shoulder looks out of place after a fall or a stretched reach and you cannot move the arm.
- Heat illness: confusion, collapse or a very hot body with vomiting after playing in the heat.
See a doctor today if
- Sudden weakness: you cannot lift the arm after a pop or a hard serve.
- Fever: a hot, red, swollen shoulder with fever or feeling unwell.
Get it checked soon if
- No change in 2 to 3 weeks: pain is not easing despite cutting serves.
- Muscle wasting: a hollow appearing above or below the ridge of the shoulder blade.
- Catching or dead arm: clicking, catching or a dead-arm feeling on serves.
- Night pain: you are woken most nights.
More on this area: neck and shoulder pain by job and sport.
Most tennis and racquet sport shoulder pain responds to fewer serves, more leg and trunk drive and a stronger back of the shoulder, over 6 to 12 weeks.
Written by Louise Yow, Neck & Shoulder Physio.