He won his first singles match over Maxim Dubarenco and the doubles match with Gastão Elias.Sousa beat Frenchman Julien Benneteau in three sets in the final after saving one match point, becoming the first Portuguese player to win an ATP World Tour singles tournament. The previous record holder was Rui Machado, who was world No. Later in January, Sousa joined the Portugal Davis Cup team to face Slovenia for the Europe/Africa Group I 1st Round.He lost both his singles and doubles matches, confirming the relegation of Portugal to Group II in 2015.enabled him to enter the ATP doubles top-100 for the first time.Despite being knocked out of both tournaments in the first round, In February, Sousa participated in the Portugal Davis Cup team in their Europe/Africa Zone Group II tie against Benin.
He briefly joined the National Tennis Training Center in Maia until he was forced to leave after its closure.He became the second Portuguese player to reach the top-100 of both ATP rankings, after Nuno Marques.It was the first time since January 1996 that a Portuguese player held a spot on the singles and doubles top-100s simultaneously. 54, failing to keep his top-50 status from the previous season.Sousa is coached by former player Frederico Marques and practices at the BTT Tennis Academy in Barcelona. After winning national youth titles, he decided at the age of fifteen to invest in his career by moving to Barcelona.After an unimpressive junior career, Sousa turned professional in 2008 and won his first singles tournament in 2009.
At Challenger tournaments, Sousa won two singles titles out of three finals – Mersin and Tampere – and one doubles title at Fürth.