I Bought David luiz for my defence, but after 10 matchs i was going to sell it again, was very disappointed,
Then i told to myself, why not try him as a defensive midfielder. He is a BEAST.
For me it is the 2nd best defensive midfielder after kanté, You can try him dont be shy :D
His passing is good, correct PACE, always in the right position, does not give up easily, good headers...
Try him, you wont be disapointed