The Stags will be the disappointed of the two as the Bulls, despite being the home team, was more than content to defend for much of the game.
It was the fashion the Bulls had used to build their previous few campaign and it looked this season it is no different despite claims they will be more attacking minded.
That was why the Stags had to score first to force the Bulls out and that was what happen as Park Yo Seb score the opener for the Tampines side.
But the Bulls got themselves back into the game before the half-time as another Korean Park Kang Jin scored this time from the spot.
Quite why the referee thought it was a spotkick is an answer only the referee can answer but it was undeserved and the Stags will have been very disappointed.
With the score level now, the Bulls was willing to come out in the second period doing what they did in the first which was to sit back and wait for the Stags to break them down.
This time there was to be no breakthrough and the Stags have paid for the referee decision in the first period.
Now they have to defeat the Cheetah in the next match to get their season off the road.
Zakariah Nerani (GK), Jaslee Hatta (C), Jeremy Chiang, Obadin Aikhena, Walid Lounis, Hamqaamal Shah, Tengku Mushadad, Ridhwan Jamaludin (Shafuan Sutohmoh), Chang Jo Yoon (Kwon Jin Sung), Zulkiffli Hassim (Ruhaizad Ismail), Park Kang Jin
Tampines RoversHassan Sunny (GK), Benoit Croissant, Seiji Kaneko, Ahmad Latiff (Ahmed Fahime), Akihiro Nakamura, Shahdan Sulaiman, Imran Sahib, Ismadi Mukhtar, Park Yo Seb, Shukor Zailan (Jamil Ali), Aleksandar Duric (C)