BBC Radio 1 and Radio 1Xtra have announced a new line-up for Saturday nights, whilst Tim Westwood leaves the stations and Trevor Nelson renews his 1Xtra contract.

Westwood, who joined Radio 1 in 1994 to present the station's first rap show, has been a key part of the Radio 1Xtra schedule over the years, having hosted a Sunday night show (10pm - midnight) as well as the drive time show (weekdays, 4-7pm) on the network.

Discussing the DJ's departure, BBC ...