He struck 11 winners and won 89 per cent of first serve points .
At deuce , Djokovic rifled a return winner that clipped the edge of the tramline and would convert on his first set point to wrap up the opener in 39 minutes .
Djokovic struck 11 winners and won 89 per cent of first serve points .
At deuce , Djokovic rifled a return winner that clipped the edge of the tramline and would convert on his first set point to wrap up the opener in 39 minutes .