2017–18 Chelsea F.C. season
season of football team

The 2017–18 season was Chelsea's 104th competitive season, 29th consecutive season in the top flight of English football, 26th consecutive season in the Premier League and 112th year in existence as a football club. The season covered the period from 1 July 2017 to 30 June 2018.
The season was the first since 1997–98 without former club captain John Terry, after he departed to Aston Villa on a free transfer following 22 years with the club. It was also the first season since 2007–08 without Branislav Ivanović, who departed in the same transfer window to Russian club Zenit Saint Petersburg. Chelsea returned to the UEFA Champions League after a single season's absence and entered the Premier League season as defending champions. The season was also Chelsea's first under the new kit deal with Nike, the most lucrative commercial deal in the history of the club.
Team kits
Supplier: Nike / Sponsor: Yokohama Tyres (chest), Alliance Tyres (sleeve)
Month by month review
May
On 22 May 2017, it was announced Juan Cuadrado would join Juventus on a permanent deal for a preset transfer fee of £17.3 million after a clause in his loan contract became triggered. He subsequently signed a contract with the Serie A champions until 2020.
On 24 May, newly promoted Premier League club Newcastle United activated the option-to-purchase clause in Christian Atsu's loan contract from the 2016–17 season, purchasing the player for a reported £6.2 million.
On 30 May 2017, Asmir Begović signed for Premier League club AFC Bournemouth on a long-term contract after Bournemouth purchased the player for an undisclosed transfer fee rumoured to be close to £10 million.
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