The Serbian needed three sets to defeat qualifier Andrej Martin at the Belgrade Open on Friday.

On the back of his thumping victory at Belgrade Open, the Serbian has the fifth most Open Era wins list.

With an opening-round win in Belgrade, the Serbian has tied with Guillermo Vilas for the fifth-most wins in the Open Era.

After winning his match in straight sets, the Serbian World No.1 will take on Federico Coria in the last eight.