[3] On 16 December 2014 Atlético announced the signing of Argentine striker Lucas Pratto from Vélez Sarsfield, elected Footballer of the Year of Argentina in the 2014 season.

[6] Former team captain Réver left the club on 14 January, after 4 and a half years of service, joining fellow Série A side Internacional.

[8] Despite training with the squad in the start of the pre-season, Diego Tardelli departed the club, this time joining Chinese side Shandong Luneng on 17 January 2015, for a €5.5 million fee.

[12] Campeonato Mineiro went underway on the first day of February and Atlético started the season with a 2–0 home win against Tupi, with goals by Dátolo and Pratto.

Copa Libertadores didn't start well for Atlético, with the team failing to secure a good result against Colo-Colo in Santiago, with the match ending 2–0 to the Chilean side on 18 February.

[18] The bad run continued on 25 February, with the season's first home defeat: 0–1 against Mexican club Atlas, for the second round of the Copa Libertadores second stage.

[23] The second of them happened in the Copa Libertadores, in which the team defeated Santa Fe at El Campín 1–0, the match-winner being a header by Pratto who had returned to the squad after an injury.

[26] The first stage of Campeonato Mineiro ended for Atlético with a 2–0 away defeat to Boa Esporte on 5 April, which meant the team finished on 3rd position and would face rivals Cruzeiro in the semi-finals.

[33] The decisive match against Colo-Colo was played on 22 April, and the needed 2–0 result came thanks to a sensational long strike by Rafael Carioca in the last minutes, which meant qualification to the round of 16.

[35] On 3 May, Campeonato Mineiro came to a conclusion, and Atlético were crowned champions of the competition for the 43rd time after a 2–1 win over Caldense in Varginha, with goals by newcomer Thiago Ribeiro and Jô.

[37] The round of 16 of Copa Libertadores saw Atlético face fellow Brazilian side Internacional, with the first leg being played at the Independência on 6 May, and ending 2–2, with an injury time goal by Leonardo Silva.

[41] With Campeonato Mineiro finished and out of Copa Libertadores, the club now focused only in the Série A, and had to play its first league home game of the season away from Belo Horizonte, to comply with a ban imposed by the Superior Tribunal de Justiça Desportiva.

[69] A setback occurred in the second leg of the Copa do Brasil round of 16 against Figueirense, in which despite scoring first, the team allowed a comeback by the opposition in the last minutes and was eliminated from the competition.

[72] Atlético then traveled to Rio de Janeiro again, this time to face Vasco da Gama, and won 2–1, which meant all three clubs from the state were defeated at the Maracanã.

[76] A comeback of sorts came in the following matchday, in which the team defeated interstate rivals Flamengo 4–1 at the Independência, with a fine display by Jesús Dátolo, completing six victories out of six possible against Rio's clubs in the season.

[80] Supplier: Puma / Sponsors: MRV Engenharia, Vilma Alimentos, Cemil, TIM, Tenco, Supermercados BH[81][82] Players and squad numbers last updated on 19 September 2015.