Date of birth
Republic of Ireland
The tricky midfielder continued his development by stepping up to the Republic of Ireland's under-19 squad during 2017/18, having previously represented them at under-18 level.
Flanagan has been tipped for big things at the Eagles since making his development team debut aged just 15 back at the end of the 2014/15 season.
Since then he has shared his time between the under-18s and the under-23s and was named as Palace's Scholar of the Year in 2016/17 before establishing himself as a key member of Richard Shaw's under-23 side the following campaign.
He finished the 2018/19 season as joint top-scorer with Levi Lumeka.