Here are three players Sunderland could sign this summer to finally fill the void left by Amad Diallo. Sunderland are just weeks away from the end of a disastrous 2023/24 season. The Black Cats have suffered 20 defeats in the Championship this term and have certainly felt the effects of a number of key players leaving. The likes of Danny Batth, Alex Pritchard and Lynden Gooch have all left the Stadium of Light after becoming regulars in the starting line-up last season. Meanwhile, Amad Diallo‘s absence has been glaringly obvious, with the Ivorian returning to Manchester United last summer. Ama…