David Coverdale recording "Slide It In" to re-form Deep Purple. (Ian Paice had left Whitesnake in 1982.) In 1985, Sykes and Coverdale started working on new songs for the next album, but Coverdale soon contracted a serious sinus infection that made recording close to impossible for much of 1986 and which had doctors thinking he might never sing again. Coverdale eventually recovered, and recordings were continued. But before their upcoming album was fully recorded and released, Coverdale had dismissed Sykes from the band. The split with Sykes was, reportedly, not amicable. In many period interviews, Coverdale stated that the next album was
David Coverdale Whitesnake's "Greatest Hits" album. The band again broke up after the tour. After this Coverdale once again retreated from the music business, for three years. In 1997 Coverdale returned and released "Restless Heart" (with Vandenberg on guitar). The album was originally supposed to be Coverdale's solo album, but the record company forced it to be released under the moniker "David Coverdale & Whitesnake". The tour was billed as Whitesnake's farewell tour, during which Coverdale and Vandenberg played two unplugged shows, one in Japan and the other for VH1. The first of the two shows was released the next year under