It sounds uncomfortable to have persistent abdominal muscle pain after playing football. This pain may be due to a muscle strain or minor injury sustained during the match, especially since it started with activity and continues with running and speed walking.

• Resting the affected muscles and avoiding activities that worsen the pain can help.
• Applying ice to the area for 15–20 minutes several times a day may reduce inflammation.
• Over-the-counter pain relief or muscle relaxants like Myoril (which contains thiocolchicoside) might be considered but only under a doctor’s guidance.
• If the pain worsens, is severe, or is accompanied by other symptoms like swelling, bruising, or difficulty moving, you should see a sports medicine specialist or an orthopedic doctor.
• Persistent pain beyond a week or signs of muscle tear require professional evaluation and possibly imaging.

Please consult a sports medicine doctor or orthopedic specialist to get a proper assessment and tailored treatment plan. If you experience sudden severe pain, swelling, or inability to move the abdomen or legs, seek emergency care immediately.To narrow down potential causes, we will need some more information.Please tell me your age and gender.