Constantin 'Costel' Rădulescu (October 5, 1896 – December 31, 1981) was a footballer and manager from Romania who rose to prominence in the 1920s and 1930s. At one time or another Rădulescu had been associated with the Romania national team as either coach, manager or administrator within the Romanian Football Federation between 1923 and 1938.
After the end of the War Rădulescu played football for SC Olympia Bucureşti and Tricolor Bucureşti until 1923 . After 1923 Rădulescu switched to refereeing, coaching and administration and was involved in the development of the Romanian football federation in 1930, a development which put an end to the practice of the game being run in his country by a commission. He was manager of the national team on 18 occasions and coach on a further 24 occasions between 1923 and 1940. In the second World Cup he acted as a selector and at the third World Cup he was employed as the trainer of the side. He was a referee for 20 years, directing 200 first-division matches as well as 102 international matches between clubs and 11 between countries. He assisted as a linesman on other occasions when Romania were playing in the 1930s.
The reasons for Romania's entry into the first World Cup are not known; however, during the competition, Rădulescu twice officiated as a linesman in matches featuring Argentina and Uruguay on those match days when the Romanians were not playing. (Ulises Saucedo, the Bolivian coach, also acted as a match referee during the Finals). He assisted as a linesman on other occasions when Romania were playing in the 1930s.
The apocryphal influence of King Carol on the selection of the first team is disputed. FIFA accept that "a decree from King Carol gave the players three months off from their jobs and a guarantee that they [would] be re-employed on their return. The king himself [was] also active as coach ..."  But there is nothing to substantiate such claims and the King, absent from the nation since 1925 only returned to Romania on June 8, 1930.