The 2014–15 season was a watershed season for the midfielder as he reached several milestones: his 200th (Serie A) and 300th (all competitions) appearances for Juve and first Coppa Italia title and Champions League final appearance. Marchisio scored his first goal of the 2014–15 season, under new manager Massimiliano Allegri, on 13 September, a 2–0 home win over Udinese. On 15 February 2015, he made his 200th appearance in Serie A with Juventus, scoring a goal in a 2–2 draw against Cesena. On 7 April 2015, Marchisio returned from a short injury lay-off for the second leg of the semi-finals of the Coppa Italia against Fiorentina and made an immediate impact, sending in the cross which led to Alessandro Matri's opening goal and setting up Leonardo Bonucci's goal from a corner in a 3–0 win, which allowed Juventus to progress to the final of the competition. However, his yellow card in the game meant that he would be suspended for the final, a 2–1 extra time victory over Lazio. Marchisio made his 300th appearance in all competitions for Juventus in a 3–2 home win against Fiorentina on 29 April. In the absence of Andrea Pirlo due to injury, Marchisio occasionally deputised as designated corner and indirect free kick taker. On 2 May, he took part in Juventus's 1–0 win over Sampdoria, which allowed the club to capture the Serie A title for a fourth consecutive time. On 16 May, he scored the winner against Inter in the Derby d'Italia, the first time he has scored from the penalty spot during a match. In the Champions League Final loss to Barcelona, he started the counterattack with a backheel pass that led to Álvaro Morata's equalizer, but the eventual winners scored two more goals to win 3–1. With 52 appearances, Marchisio was one of three players, the other two being Bonucci and Argentine midfielder Roberto Pereyra, to make the most appearances for Juventus across all competitions that season. Although he did not score as many goals as in previous three seasons, he tallied the second most assists, only one less than top scorer Carlos Tevez. He was named in the UEFA Champions League squad of the season and voted Player of the Season for 2014–15 by registered users of vecchiasignora.com, the largest Italian-language Juventus fansite.