The Serb is playing a pre-Wimbledon event for the first time since 2010 and will next face the winner from a pair of Americans, Donald Young and Jared Donaldson.

The two-time Wimbledon champion got onto court as first match after rain washed out Tuesday play - save one game in the Djokovic match - leaving organisers with a backlog to get through.

The former number one claimed his fifth victory without a defeat against Pospisil, who is now 4-22 lifetime against Top 10 opponents.

Djokovic, who will be advised by Andre Agassi at Wimbledon, is the second-highest-ranked men's player to ever compete at the Aegon International behind then-number two Marcelo Rios in 1998.