This is what we found on Wikipedia regarding the Conor Niland:

Conor Niland (born 19 September 1981) is an Irish former professional tennis player. He was born in Birmingham, England, and grew up in Limerick, Ireland. He attended St. Nessan's National School in Mungret, Limerick, before moving on to Crescent College Comprehensive in Dooradoyle, Limerick. He was the highest ranked Irish tennis player during his career. He played for the Ireland Davis Cup team from 2000 to 2012. He officially announced his retirement from tennis on 12 April 2012 due to a recurring hip injury. In a statement Niland said: "I am today sadly announcing my retirement from professional tennis. I have been suffering from labral tears in both hip cartilages and this has resulted in pain and restricted movement for the past nine months."