Released in 2008, Saja signed a three-year contract with AEK Athens, earning approximately €400.000. He appeared in 29 games in his first year to help his team finish fourth in the league, but they was also quickly eliminated from UEFA Cup contention.[3]
On 31 May 2009, Saja agreed to a new three-year deal with the Greek side,[4] continuing to be first-choice and winning the Greek Cup in 2011.
Return to Argentina
On 29 June 2011, Saja and AEK agreed to terminate his contract one year before it expired.[5] Shortly after, the 32-year-old returned to his homeland and joined Racing Club de Avellaneda,[6] netting his first goal for his new team on 29 September of the following year, through a penalty against former club San Lorenzo in a 4–0 win;[7] he was also the goalkeeper with the fewest goals conceded in the 2011 Apertura, breaking a club record for a short tournament held by Carlos Roa since 1992.[8]
On 9 June 2013, again from the penalty spot, Saja scored against Boca Juniors (2–0 home triumph, which qualified the team for the Copa Sudamericana).[9] On 18 October 2015, against the same opponent but for the league, he repeated the feat to help the hosts win it 3–1.[10]
On 21 December 2016, after being overtaken by another new signing, Stole Dimitrievski, Saja left Nàstic by mutual consent.[13] The following 24 January, he joined fellow league team Real Zaragoza until the end of the campaign.[14]
On 9 June 2017, Saja announced his retirement at the age of 38.[15]