the second matchday of the Superleague Greece, he provided an assist to David Fuster in a 2–1 home win against Atromitos. On 1 September 2013, he scored his first career hat-trick in a 5–0 away win against Levadiakos after three assists from Fuster. He scored his second hat-trick on the next fixture in a 4–0 home win against Skoda Xanthi, becoming the first player in Olympiacos history—as well as the Greek League generally—to score two consecutive hat-tricks, while also having also scored in an international match between these two fixtures. Mitroglou scored his third hat-trick of the season on 2 October, scoring all three goals in a 3–0 away win against Anderlecht in the UEFA Champions League group stage. He became the first Greek player to complete a hat-trick in the Champions League, and along with Predrag Đorđević is one of only two Olympiacos players to have scored a hat-trick in the Champions League. Mitroglou's scoring streak continued as he scored another hat-trick four days later in a comfortable 6–0 home win against Veria, while also assisting a goal to Joel Campbell. His next goal came in an away win (1–4) against Platanias after an assist from Alejandro Domínguez, a match in which he also provided the assist for Javier Saviola's goal. On 24 October, Mitroglou assisted Domínguez's goal against Benfica in a 1–1 draw in the UEFA Champions League. He next scored two goals at a home win 5–1 against OFI Crete with two headers after two assists from Joel Campbell. He next scored the winning goal in an away win (1–0) against Panathinaikos. He next scored a goal at a home win 4–0 against PAOK after another assist from Joel Campbell. On 27 November, Mitroglou suffered an injury in a 2–1 away loss against Paris Saint-Germain, keeping him on the sidelines for over a month. On 19 December, amid much transfer speculation, Mitroglou renewed his contract with Olympiacos until 2017. On 10 January 2014, he recovered to come on as a substitute against Atromitos. Fulham On 31 January 2014, Mitroglou signed a four-and-a-half-year contract for a transfer fee believed in the region of £12 million with English Premier League club Fulham. On 22 February, he made his debut for Fulham in a 1–1 draw at West Bromwich Albion, replacing Hugo Rodallega after 61 minutes. Mitroglou was the highest transfer fee in Fulham's history, and despite Fulham pinning their