13 May, 2017
Mark Warburton and his successor as Rangers manager, Pedro Caixinha, also included the player in first-team training sessions, with the latter meeting Gilmour's parents to try to persuade the player to stay at Ibrox.
Rangers could earn more than £1million from the sale of 15-year-old Billy Gilmour to Chelsea, Press Association Sport understands.
A number of high-profile clubs had been chasing the teenager, including Arsenal, Manchester United, Barcelona and Bayern Munich, but it is Chelsea who have won the race.
Chelsea have finally been able to secure the signature of highly-rated 15-year-old prodigy Billy Gilmour.
Glasgow Rangers have confirmed on their official website that prodigious young midfielder Billy Gilmour will move to Premier League champions-elect Chelsea this summer.
The player will be signing a contract with Chelsea as soon as he turns 16.
As well as fast-tracking him into first-team consideration since February, the Scottish giants did everything they could to discourage interested clubs until it became clear that Gilmour and his family had their hearts set on a move to Chelsea.
The Gers had been working hard to convince Gilmour to stay and continue his career at Rangers and Nevin, a former Chelsea winger, admits that he would have preferred that route for the youngster, who he feels would have played first team football at 17. "We believe we have done this", the Scottish Premiership side said.
The Stamford Bridge side were among a number of teams in hot pursuit of the youngster, who caught the eye of scouts with his performances for Rangers' youth sides and the Scotland under-16 team.
"We are pleased with this outcome and believe this deal represents good value for Rangers".