Lucas Perez joined West Ham United from Arsenal in the summer transfer window.
Liverpool are reported to have asked for £12 million for Mignolet.
Middlesbrough may be looking to strengthen in the Arsenal man's positions.
Matteo Guendouzi was in action for Arsenal against Manchester City at the weekend.
Nottingham Forest’s Zach Clough is reportedly on the radar of Aberdeen and Hibernian in the summer transfer window.
Jack Wilshere made his debut for West Ham United at Anfield.
West Ham United have signed Lucas Perez from Arsenal in the summer transfer window.
Tottenham Hotspur should have signed Riyad Mahrez before the winger joined Manchester City from Leicester City, suggests Ian Wright.
Everton and Newcastle United reportedly wanted Arsenal’s Danny Welbeck this summer.
Arsenal completed their business early this summer with the likes of Bernd Leno and Lucas Torriera making the switch to north London.