There is a possibility of acute lower back muscle spasm which might have due to some jerk while playing cricket. There is also a possibility of some soft tissue injury which might be causing the trouble..
Next Steps
I will suggest you to start with hot fomentation, take analgesic and muscle relaxant tablet, apply analgesic ointment at the site of pain for 3-4 times daily..
Health Tips
Avoid heavy work, avoid sitting down, avoid Indian toilet, avoid forward bending..