Former British number one Andy Murray says he is revelling in the atmosphere created by the Battle of the Brits team event.
The event pitches two 13-strong mixed teams against each other across different formats over seven days.
"I would rather play with eight to 10 players heckling me from the side than playing in silence," said Murray.
"You want an environment where everyone is extremely competitive and there is a bit of atmosphere."
The behind-closed-doors event, organised by Murray's brother and doubles specialist Jamie, follows separate singles events for the British men and women, won by Dan Evans and Kate Boulter respectively.