Adelino André Vieira Freitas
Formed in the youth ranks of Vitória de Guimarães, Vieirinha caught the interest of F.C. Porto and eventually finished there his football grooming. After a six-month loan at Portuguese second division's Futebol Clube do Marco, he joined the first team for 2006–07, being given a four-year professional contract.
Vierinha played his first official game for Porto on 11 August 2007, in the Portuguese Supercup against Vitória de Setúbal, subbing in at the 70th minute, and scoring the game's last goal in the 89th, in a 3–0 final result.
Alongside teammates Diogo Valente and Paulo Machado, Vieirinha was loaned to top flight promotees Leixões SC for the 2007–08 campaign. All proved instrumental as the Matosinhos outfit retained its league status at the season's close.
Vieirinha then returned to Porto, being immediately loaned to PAOK F.C. of Greece, which had expressed interest in the player as Fernando Santos was at the club's helm at the time. A season-long loan was eventually arranged, as Vieirinha teamed up with compatriot Sérgio Conceição. After only a few games, he picked up a serious leg injury in a derby against Aris Thessaloniki. He returned to training during the January 2009 winter break, and came in as a substitute in a home game against OFI Crete.
In late June 2009, PAOK came to terms with Porto to make the move permanent, following Vierinha's wish to continue playing under coach Santos. Late in the year, he renewed his link until June 2013, with a €15 million buyout clause.
On 4 November 2010, diminutive Vieirinha scored with his head in a 1–0 home win against Villarreal CF of Spain, for the season's UEFA Europa League.He was also named the league's Most Valuable Player,helping PAOK finish in fourth position and qualify to the Europa League.