Pazzini began his football career at Atalanta, breaking through the youth ranks and debuting for the senior side in 2003. Originally a left-back, he scored 9 times in his first season as he became a striker, and was tipped for great things. He moved to Fiorentina in January 2005 for €9.5 million; however he struggled to live up to his potential after he lost a battle with Luca Toni for the starting strikerÃƒÂ¢€Ã¢â€žÂ¢s position. His four seasons at Fiorentina was spent playing second or third fiddle to Toni, Albert Gilardino, Adrian Mutu and Valeri Bojinov.
His 25 goals over these seasons still showed he could perform in Serie A, so halfway through the 2008-2009 season he moved to Sampdoria, making an instant impact. He formed a lethal striking partnership with Antonio Cassano, scoring 15 times till the end of the season, and scored a further 21 goals in 2009-2010. His two years at Sampdoria came to an end in January 2011, moving to Internazionale and taking up the number 7 shirt. He helped Inter win the Coppa Italia, and has since become the main striker in Milan.
PazziniÃƒÂ¢Ã¢â€šÂ¬Ã¢â€žÂ¢s international career started in 2004 as he represented Italy U21s for three years with 22 appearances. He finally played for Italy in 2009, scoring on debut against Montenegro. He has since played a total 23 times for Italy, with four goals ÃƒÂ¢Ã¢â€šÂ¬Ã¢â‚¬Å“ however his time with the Azzurri has not been great. He was part of the team that fell out of the 2010 World Cup after the group stage, and he also holds the record for the fastest red card in Italian history.