The popular winger rejoined Palace in January 2019 from West Bromwich Albion, where he had spent three months after initially leaving Selhurst Park at the end of the 2017/18 campaign.
The former Wolves winger signed for Palace on a free transfer on the eve of the 2015/16 season after his contract at Molineux expired during the summer, and he went on to make an instant impression in SE25 by netting a late winner against Aston Villa on his debut for the Eagles.
He followed that up with another goal in the following game against Chelsea that helped beat the reigning champions, and finished his first season with the Eagles with 23 appearances under his belt.
After an injury-plagued 2016/17 season, he recovered to score some vital goals for the Eagles the following campaign, including a run of four in seven appearances either side of the turn of 2018 before a season-ending ankle injury at West Ham United in January 2018 brought to an end his exploits.
Born in France, Sako got his break in the professional game with Chateauroux in Ligue 2 in 2006 before earning a move to Saint-Etienne three years later, where he would become a regular in their side until Wolves snapped him up for £4 million in August 2012.
He would play a crucial role in the club's promotion from League One by finishing as joint top scorer and was named in the Team of the Year. His success continued in the Championship, once again finishing as Wolves' top scorer with 16 goals and named in the division's seasonal line-up before his contract expired.
Having represented both Mali and France at youth level, he opted to play for the former at full level and has 21 caps for the side also known as the Eagles, scoring nine goals, and represented them in the 2015 and 2017 Africa Cup of Nations.