Manchester United monitored several midfield targets over the summer in an attempt to find a long-term successor to Casemiro. Casemiro ended up staying put at Old Trafford this summer despite transfer links to Turkey and Saudi Arabia. The Red Devils wanted to sell the Brazilian midfielder over the summer but there were a lack of willing buyers and Fabrizio Romano revealed that a move to Saudi collapsed after the Al-Ittihad president resigned. Casemiro’s performances have continued to decline this season and Manchester United will need to source a replacement sooner rather than later. Manuel Ug…