Conor Hourihane is the new Derby County captain.
The 33-year-old Republic of Ireland international scored six goals in 47 appearances as Derby finished second behind Portsmouth in League One.
Hourihane is reportedly a target of one of his former clubs, Barnsley,, external in a player-coach role, having skippered them to a promotion and EFL Trophy double in 2016.
Fellow midfielder Korey Smith, strikers Dwight Gayle and Martyn Waghorn, and goalkeepers Scott Loach and Joe Wildsmith will also leave Derby this summer.
Waghorn scored seven goals after being picked up as a free agent last summer for a second spell with Derby following his release by Coventry City, and Gayle netted three times in six appearances, having been released by Stoke City in February.
