David Luiz detects growing maturity in Arsenal ranks

The Brazilian defender was buoyed by cup win over Newcastle before sides meet again on Monday

Arsenal's David Luiz 

David Luiz believes Arsenal have started to show they are maturing as a side by winning games such as their FA Cup third round tie with Newcastle last weekend.

The Gunners needed extra-time to secure a 2-0 victory in what proved to be a tight contest at the Emirates Stadium.