Roman Abramovich saw Chelsea ease to victory in New England, raising more than £3.1million to combat discrimination but any delight and self-congratulation was muted by what appeared to be a serious injury to Ruben Loftus-Cheek.
Maurizio Sarri's worst fears about this post-season fixture were realised when Loftus-Cheek went down clutching an ankle within 20 minutes of coming on as a half-time substitute.
He twisted in agony as he was treated on the pitch, was helped back to the dressing room by two of the medical team and left the Gillette Stadium on crutches with his left foot in a protective boot.
The initial assessments were not positive and Loftus-Cheek has damaged his achilles which will end his hopes of playing in the Europa League final against Arsenal in Baku, in less than two weeks.
Team-mate Marcos Alonso said: 'I think they [the medical staff] still don't know [what the issue is]. He has a little bit of pain and it doesn't look very good to be honest but fingers crossed he can be back as soon as possible.
'I think it's the achilles. He was on his own [when he went down injured]. We're all very sad about this as it was very important not to get any injuries in this kind of game. We hope it isn't too bad.'
If it is an achilles injury, then the 23-year-old could face up to six months out on the sidelines. Practical examples from the recent past include David Beckham, while fellow Chelsea team-mate Callum Hudson-Odoi suffered the same injury just last month against West Ham in the Premier League.