However, with the arrival of Zlatan Ibrahimović in January 2020, Pioli switched Milan's formation to his long favored 4–2–3–1, primarily in order to accommodate for the Swedish ageing yet prolific goalscorer, in which he would play up front without much of a defensive work other than pressing, alternating between the roles of a classical striker, a target forward, and a false 9. The switch of formation also allowed Hakan Çalhanoğlu, an attacking midfielder in a number 10 role, to return to his preferred position as a playmaker behind the main striker, out of which he had been playing for years in various other formations. Ante Rebić and Ismaël Bennacer, the two high-profile new arrivals struggling to fit into the previous coach's system, were given a few more opportunities to prove themselves; as a result, the former got to play in his favorite position as a left winger and quickly topped the club's seasonal goalscoring chart, while the latter formed an efficient double pivot with Franck Kessié, who also significantly improved the quality of his performances.