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
Ian Gillan due to the smaller workload the band had compared to his own. However, the pair did jam together for three nights at Marquee Club – the first time the two men had shared a stage since 1973. Gillan continued, releasing "Glory Road" in 1980, which resulted in the band making the first of several appearances on "Top of the Pops". He considered the album to be his best work since "Machine Head" nearly a decade earlier. Following subsequent album "Future Shock", Torme was fired after missing an appearance on "Top of the Pops", and was replaced by Janick Gers. Gers