Christian Pulisic has been warned that his “babyish” comments could lead Thomas Tuchel to discuss the Chelsea star’s conduct with other managers.

The American described his frustration at being left out of the starting lineup for the second leg of their Champions League semi-final against Real Madrid in 2021.

Pulisic claimed he was ‘dumbfounded’ by Tuchel’s decision to drop him in favour of Kai Havertz, though Chelsea did progress to the final, in which they beat Manchester City to claim their second Champions League title.

In his book ‘Christian Pulisic: My Journey So Far’, he said: ‘What happened before that game was hugely disappointing for me,’

‘l’d had a really good first leg performance and our following match was against Fulham in the league. Tuchel told me that he was resting me for the second leg and as a result I didn’t play a single minute in the Fulham game.