Eager to begin his professional career, he was primarily linked to La Liga club Valencia and was reportedly in the process of joining the club, but due to a shake up in the club's front office, the move was put on hold and eventually called off. He was later linked with moves to German clubs Hertha BSC and VfB Stuttgart. Two months later, on 8 August 2009, another German club, Borussia Dortmund, announced that they had signed the player to a three-year contract and that he will be gradually introduced to the first team. On 31 January 2012, Le Tallec returned to France, signing with Nantes in Ligue 2. The following two seasons, Le Tallec played with FC Hoverla Uzhhorod in the Ukrainian Premier League. The club had just won the second tier last season and were searching for reinforcements, among them, Le Tallec. Despite the fact that during the two seasons Le Tallec spent in Hoverla, Hoverla performed rather mid-down table, Le Tallec was regular and his performances caught the attention of numerous clubs. In the summer of 2014, Le Tallec moved to Russia and signed with Premier League side FC Mordovia Saransk. Mordovia had just won the second tier and got promoted to the Premier League. Same as in Hoverla, at Mordovia, Le Tallec also performed regularly. By the winter-break of the 2015–16 season, coach Miodrag Božović, a specialist of Russian football as he had just spent 8 years coaching in Russian Premier League, was in held of Serbian side Red Star Belgrade, who were forming a strong team in order to take the title from their main rivals FK Partizan, who had become chronic winners in the last decade, and in that built-up of the team, Božović made a priority of signing both Mordovia players, Le Tallec and Mitchell Donald, and both ended up moving to Belgrade. On 29 January 2016, Le Tallec signed a 2.5-year contract with Red Star Belgrade. In his league debut with Red Star less than a month later, he scored a goal against FK Mladost Lučani. At the end of his first season at Red Star, they won the Serbian championship and qualified for a berth in the Champions League qualifying rounds. Having played most of the former season as central midfielder, along Mitchell Donald, since start of the 2016–17 season, Le Tallec was often adapted as central defender by Red Star coach Miodrag Božović.