Accra Hearts of Oak will play South Africa Premier League side Mamelodi Sundowns in a friendly at the Accra Sports Stadium on July 17.The South African club has confirmed that it will hold part of its Pre-Season training camp in Ghana from the 15th to the 24th of July and have requested to play the Phobians during their ten-day stay in Ghana.Hearts have agreed to engage the South Africans after receiving their request. A letter to signed by Mamelodi's Administrative Manager, Ms. Belinda Ndlovu indicated that the Hearts encounter will be one of three friendly matches that the South African side has lined up during the Pre-Season exercise.Meanwhile coach David Duncan has submitted a list of 13 players who are not part of his plans for next season.The list includes Osei Bonsu and Esme Mends who have been released by the club after refusing to renew their contracts.Duncan wants some to be loaned out or released from their contracts in a massive clear-out after his first stint in-charge.The former Ghana U-23 coach is preparing for Eight new signings he has targeted for the upcoming seasonBut management says it will not sign more than six first team players in the transfer window.Hearts last won the Ghana Premier League in 2009 and have vowed to end that drought come next season.