Thomas Tuchel has hailed Kai Havertz for playing through the pain of a "horrible" broken finger in Chelsea's 2-0 Carabao Cup semi-final first-leg win over Tottenham.

Havertz’s fifth goal of the season put Chelsea in charge against a miserable Spurs, but the Germany forward suffered a nasty broken finger in the tumble that followed his early finish.

The 22-year-old battled on until half-time when he was forced to give up the ghost amid mounting pain, but Chelsea still produced a fine result amid a makeshift set-up and against a strong Spurs XI.

Chelsea made a last-minute switch to a back four after Thiago Silva and N’Golo Kante tested positive for Covid-19 on Wednesday morning.

And Tuchel paid tribute to Chelsea’s players for shaking off the mounting injury and coronavirus-enforced absentees to put one foot in the League Cup final.

"Kai has the issue with his finger, he broke his finger and it looked horrible," said Tuchel.

"And he played through the pain that was getting bigger and bigger. He survived until half-time and then we had to make the change.

"I liked our performance a lot. We looked full of confidence and had two late last-minute pieces of bad news with Thiago Silva and N’Golo Kante, who were both supposed to start.

"So we decided at the last minute to maybe switch to a back four. The guys were very committed and very open to that, to making such a late change.

"And it was a very strong performance, so it was a well-deserved win in a big match against a very strong opponent."

Centre-back Silva’s positive Covid test further depletes Chelsea’s defence, with Andreas Christensen out with a back problem and Ben Chilwell and Reece James long-term absentees.

Captain Cesar Azpilicueta went down late on and hobbled out of the clash in the closing stages, but appears to have avoided a serious issue.

Tuchel added: "We were very worried but Azpi says it’s only a cramp and not an injury. So that would be good news and we trust him."