Chelsea boss Antonio Conte felt for Jeremie Boga after defeat to Burnley.
Conte handed Boga his debut, but took him off after Gary Cahill was sent off.
He said, "It's impossible to judge Boga's performance as he only played 16 minutes. It was a pity because he's young with good quality.
"It was a pity to change the system to try to find a different solution but for sure in the future he could have another chance."