A 27 year old male client enters a massage therapy office for a treatment holding...

A 27 year old male client enters a massage therapy office for a treatment holding his right hand along the pinky and ring finger. He complains of numbness and weakness in the two affected digits. He states the condition has been progressing over the last few weeks. He works in IT for a database company and works normal hours and is not very stressed at work. He is a daily commuter cyclist and also enjoys playing disc golf. What is the most likely cause of this condition?