Question: What team competing for the 2017 Joan Gamper Trophy was scheduled to play the first leg of the 2016 Copa Sudamericana Finals against Atletico Nacional?

Context articles: 2009 Copa Sudamericana Finals
2015 Joan Gamper Trophy
2004 Copa Sudamericana Finals
2017 Joan Gamper Trophy
2014 Joan Gamper Trophy
LaMia Flight 2933
2005 Copa Sudamericana Finals
2016 Copa do Nordeste
2016 Copa Sudamericana Finals
2016 Joan Gamper Trophy

The 2009 Copa Sudamericana Finals was a two-legged football match-up to determine the 2009 Copa Sudamericana champion.
 It was contested by Ecuadorian club LDU Quito and Brazilian club Fluminense.
 Both teams were playing in their first Copa Sudamericana finals.
 The first leg was played in Estadio Casa Blanca in Quito on November 25, and the host team won it 5-1.
 The second leg was played in Estádio Mário Filho, better known as Maracanã, in Rio de Janeiro on December 2, and the host team won it 3-0, but LDU Quito won 5-4 on aggregate and was crowned as the champion.
 Coincidentally, the finals were a rematch of the 2008 Copa Libertadores Finals, which was contested under similar circumstances 17 months prior to the day.
The 2015 Joan Gamper Trophy was the 50th edition of the Joan Gamper Trophy.
 Spanish side and hosts Barcelona faced Italian side Roma at the Camp Nou in Barcelona.
 This was Roma's first appearance in the Joan Gamper Trophy.
The 2004 Copa Sudamericana Finals was a two-legged football match-up to determine the 2004 Copa Sudamericana champion.
 It was contested by Bolivian club Bolívar and Argentinian club Boca Juniors.
 Both teams were playing in their first Copa Sudamericana finals.
 The first leg was played in Estadio Hernando Siles in La Paz on December 8, and the host team won it 1-0.
 The second leg was played in Estadio Alberto J. Armando, better known as La Bombonera, in Buenos Aires on December 17, and the host team won it 2-0, and was crowned as the champion.
 As the winner, Boca earned the right to play in the 2005 Recopa Sudamericana against the winner of the 2004 Copa Libertadores.
The 2017 Joan Gamper Trophy was the 52nd edition of the Joan Gamper Trophy.
 Spanish side and hosts Barcelona faced Brazilian side Chapecoense at the Camp Nou in Barcelona.
 This marked Chapecoense's first ever appearance in the Joan Gamper Trophy, as a tribute to the 71 Chapecoense players and staff who lost their lives after the LaMia Flight 2933 tragedy in La Unión, Colombia, on 28 November 2016.
The 2014 Joan Gamper Trophy was the 49th edition of the Joan Gamper Trophy.
 Spanish side and hosts Barcelona faced Mexican side León at the Camp Nou in Barcelona.
 This marked the first appearance of a North American team in the Joan Gamper Trophy.
LaMia Flight 2933 (LMI2933) was a charter flight of an Avro RJ85, operated by LaMia, which crashed in Colombia at 21:58 on 28 November 2016 killing 71 of 77 people on board.
 The aircraft was transporting the Brazilian Chapecoense football squad's 22 players, 23 coaching and other staff, 2 guests and 21 journalists from Viru Viru International Airport in Santa Cruz de la Sierra , Bolivia, to José María Córdova International Airport in Colombia.
 The team was scheduled to play the first leg of the 2016 Copa Sudamericana Finals in Medellín against Colombian team Atlético Nacional .
 One of the four crew members, three of the players, and two other passengers survived.
The 2005 Copa Sudamericana Finals was a two-legged football match-up to determine the 2005 Copa Sudamericana champion.
 It was contested by Mexican club Pumas UNAM and Argentinian club Boca Juniors.
 Boca was defending their trophy and Pumas UNAM were playing in their first Copa Sudamericana finals.
 The first leg was played in Estadio Olímpico Universitario in Mexico D.F. on December 6, and the match was tied 1-1.
 The second leg was played in Estadio Alberto J. Armando, better known as La Bombonera, in Buenos Aires on December 18, and, again, the match was tied 1-1, so in the penalty shoot-out Boca won 4-3 and was crowned as the champion and successfully defended the title.
 As the winner, Boca earned the right to play in the 2006 Recopa Sudamericana against the winner of the 2005 Copa Libertadores.
The 2016 Copa do Nordeste was the 14th edition of the main football tournament featuring teams from the Brazilian Northeast Region.
 The competition featured 20 clubs, with Bahia and Pernambuco having three seeds each, and Ceará, Rio Grande do Norte, Sergipe, Alagoas, Paraíba, Maranhão and Piauí with two seeds each.
 Santa Cruz (Pernambuco) qualified to play in the 2016 Copa Sudamericana, after winning the final against Campinense (Paraíba) 3–2 on aggregate.
<br>Santa Cruz also qualified to play in the 2017 Copa Sudamericana but CONMEBOL decreased the brazilian berths from 8 to 6.
 Therefore, the champions Santa Cruz (Copa do Nordeste) and Paysandu (Copa Verde) lost their Copa Sudamericana berths.
 Finally, they were qualified to the 2017 Copa do Brasil Round of 16.
<br>Ceará were the defending champion, but were eliminated by Santa Cruz in the quarterfinals.
The 2016 Copa Sudamericana Finals were scheduled to be the two-legged final that would decide the winner of the 2016 Copa Sudamericana, the 15th edition of the Copa Sudamericana, South America's secondary international club football tournament organized by CONMEBOL.
The 2016 Joan Gamper Trophy was the 51st edition of the Joan Gamper Trophy.
 Spanish side and hosts Barcelona faced Italian side Sampdoria at the Camp Nou in Barcelona.
 This marked Sampdoria's third appearance in the Joan Gamper Trophy, after losing on penalties in 1997 and winning 1–0 in 2012.