Nemanja Matic to Man Utd: Martin Keown admits he's 'astonished' Chelsea agreed to transfer
The Serbian called time on his Chelsea career this summer and completed a surprise £40million switch to Old Trafford.
Jose Mourinho had been looking for a midfielder and Matic was keen on a reunion with the Portuguese boss.
However, Matic's move to United still raised a few eyebrows with Chelsea agreeing to sell to one of their title rivals, strengthening the Red Devils and improving a position they struggled with last term.
Matic earned plenty of praise for his display in United's 4-0 win over West Ham yesterday as fellow debutant Romelu Lukaku scored twice - and former Arsenal defender Keown is a big fan of the 29-year-old.
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