[2] One of Domínguez's most notable performances was in the 4–0 UEFA Cup victory over Bayern Munich which sent Zenit to the final of the competition for the first time in the history of the club.

As the Zenit Saint Petersburg defence froze, Baffour Gyan's header seemed to be making its way into the net, only for Chori—one of the shortest players on the pitch at 5-foot-7 – to miraculously jump on the line and head it onto the crossbar.

In the 2009–10 UEFA Champions League, Domínguez played well for Rubin, providing the team with goals against Inter Milan and FC Dynamo Kyiv.

[5] At the middle of the 2010–11 season, Sky Sport Italia and Tuttosport claimed that Juventus had reached an agreement for a loan with the option to make it a permanent move in the summer.

[6] In the middle of 2011, the player contacted his employers at Valencia to negotiate a loan to former club River Plate, which had been relegated for the first time in its history to the second division of Argentina.

[7] His gesture was highly appreciated by the fans, and Domínguez featured as one of the team's stars in both attacking midfielder and forward roles for the club, scoring 5 goals, providing numerous assists and functioning as vice-captain.

He left alongside top scorer and former captain Fernando Cavenaghi, both stating irreconcilable differences with club president, Daniel Passarella.

[8] He didn't stay in Valencia and was contracted at the beginning of August 2012 by Spanish Primera división club Rayo Vallecano, on a one-year deal.

[12] On 26 February 2014 after he had scored one goal against Manchester United in the first leg of their last-16 Champions League tie, he told UEFA's official site that : "I am so happy.

[16] On 2 April 2015, the Argentine attacking midfielder had been an indispensable member of Olympiakos squad for yet another season pledged his future to the club by signing a new contract until 2017.

[22] On 18 February 2016, in the 1st leg UEFA Europa League game for the round of 32 against RSC Anderlecht, Argentine midfielder Dominguez reached 100 matches with Olympiakos' jersey.

[26] In April 2017, with the arrival of the new coach Takis Lemonis, gradually returned to the starting squad and he finished the season with an away goal in a 2–0 win against Panetolikos F.C.