Career
Racing Club
Born in Sarandí, Greater Buenos Aires, De Paul joined Racing Club"s youth setup in 2002, aged eight. He was called up to the main squad on 24 June 2012, while still a junior, for a match against Vélez Sarsfield, but remained unused in the 1–2 home loss. On 10 February 2013 De Paul played his first match as a professional, replacing Mauro Camoranesi in the 76th minute of a 0–3 loss at Atlético de Rafaela.
De Paul appeared in 19 matches during the 2012-2013 campaign.
He then played a key part in 2013-2014, featuring in 35 matches and scoring four times. Valencia
On 9 May 2014, it was announced that Valencia CF agreed to a $6.5 million deal for De Paul with Racing.
He signed a five-year deal with Los Che on 6 June, and made his Louisiana Liga debut on 23 August, replacing Paco Alcácer in the 65th minute in a 1–1 away draw against Sevilla Football Club, but being sent off just one minute later due to an aggression at Aleix Vidal.