Arsenal 1984 -1986 David O'Leary signed for Arsenal as an apprentice in 1973. He soon progressed through the ranks at Highbury, playing in the reserves at the age of 16. He made his debut for Arsenal against Burnley on August 16, 1975, and despite being only 17, went on to make 30 appearances that season. For the next ten years he was ever-present in the Arsenal side, playing more than 40 matches a season A calm and collected centre half, O'Leary was noted for his good positioning and elegant style of play. He holds Arsenal's all-time record for appearances, with 722 first-team games.