The men core group of Indian hockey team arrived in New Delhi today from Bangalore for the second phase of the Olympic qualification preparatory camp which will get underway at the National Stadium from tomorrow. The 45 core probables were joined by chief coach Michael Nobbs and exercise physiologist David Ian John who arrived in the capital after a short break in Australia.During the course of the camp, India will play a five-test match series against South Africa which will also serve as the selection trials for the Olympic Qualification Tournament to be held at the same venue from February 18-26.