Frank Lampard was allegedly left livid by Marcos Alonso during Chelsea's 3-3 draw with West Brom due to player leaving the stadium after he was substituted.
The Blues were stunned by newly-promoted Albion on Saturday and went 3-0 down before half-time at the Hawthorns.
Lampard made two changes at the break, taking off Alonso and Mateo Kovacic and replacing them with Cesar Azpilicueta and Callum Hudson-Odoi.
But while Kovacic reappeared to take his place on the bench at the start of the second-half Alonso was not seen again, and according to The Athletic he watched the rest of the game on the team bus.
Chelsea fought back to snatch a point in the end, but The Athletic claim Lampard was far from impressed with Alonso's conduct, especially given the stringent rules with regards to COVID-19.
Lampard is said to have given Alonso a huge 'dressing down' in front of his teammates after the game and one source said he would be 'surprised if Alonso plays for Chelsea ever again.'
Lampard was visibly angry in his post-match interview, and singled out Alonso for criticism.
When asked about the goals his side conceded in the first-half, he said: "The first one Marcos heads it into the middle of the pitch for them for a transition.
"Marcos loses his man for the third goal from the corner, a clear mistake. You can do as many meetings as you want, if you are going to make those mistakes you give yourself a mountain to climb.”
It remains to be seen if Alonso is involved in either of Chelsea's games this week, with the Blues taking on Tottenham in the Carabao Cup fourth round before hosting Crystal Palace in the Premier League on Saturday.
He has been linked with a move away from the club this summer, but the clock is ticking before the transfer window slams shut on October 5.
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