Club career

Born in Zrenjanin, SFR Yugoslavia, Tošić began his football career with Proleter Zrenjanin, before joining Budućnost Banatski Dvor midway through the 2005–06 season. Those two teams later joined to form FK Banat Zrenjanin, now playing in the Serbian Superliga. In 25 appearances for Banat, Tošić scored two goals, and in doing so helped his team avoid relegation.

Tošić's performances both on the domestic scene with Banat and on the international scene with Serbia earned him glances from many clubs across Europe. On 6 August 2007, Tošić signed a four year professional contract with FK Partizan.

On 22 November 2008, the Daily Mail claimed that a deal had been agreed with his club for the midfielder to join Manchester United in the January 2009 transfer window. The deal was also subject to a successful work permit application as the player had not played the required 75% of his country's matches in the last year. On 28 November, there were reports that Tošić had been granted a work permit, with the transfer expected to go through at the start of the transfer window. Despite claims that negotiations had stalled over Tošić's personal terms, the transfer was finalised on 2 January 2009, with both Tošić and his Partizan team-mate Adem Ljajić joining United. Tošić will wear the number 14 shirt.

International

On the international scene, he made his debut for the Serbia national under-21 football team on 23 March 2007, against Belgium. Four days later, against Portugal, he scored his first international goal. He also took part in Serbia's 2007 UEFA European Under-21 Football Championship campaign, in which they reached the final.

On 31 August 2007, Tošić received his first call-up to the Serbia squad for the Euro 2008 qualifier against Finland and Portugal by national team manager Javier Clemente, and made his international debut against Finland.