Dobrin was born in Pitești, Argeș County, and he played for the first time in a First Division game when he was still 14, on 1 July 1962, in the match between Știința Cluj and Dinamo Pitești. He played for Argeș Pitești for 22 years, and only one year for another team, Târgoviște; Dobrin refused to play for any other First Division clubs, such as Dinamo Bucharest or Universitatea Craiova. Dobrin's contribution was essential to the 1979 Championship win for FC Argeș, when he scored in extra time to defeat Dinamo 4–3. Dobrin took the ball from the middle of the pitch, knocked off every player that tried to take the ball away from him and when he reached the penalty area he hit the ball so accurate that it went past the goalkeeper Aniței, hit the left post and entered the goal. The ball had a message attached to it from Dobrin to the Aniței. The message was:"Leave it there because there's nothing you can do about it." This was just one of Dobrin's many ways of humiliating his opponents.