Grealish left fuming over man citys carabao cup winner

I think there may be some confusion here!

Jack Grealish is an English professional footballer who plays as an attacking midfielder for Manchester City and the England national team. He has not left Manchester City, and therefore, it's unlikely that he would be "left fuming" over a Carabao Cup winner.

The Carabao Cup is an annual English football competition, and Manchester City has won it several times in recent years. If you're referring to a specific match or incident, could you please provide more context or clarify what you're referring to? I'd be happy to help you understand the situation better!