Hi there, sorry to hear you’re getting disconnected before the match starts.
Since the match isn’t being recorded and you’re seeing a connection loss during the team sheets intro, please try the connection troubleshooting steps here:
https://help.ea.com/en/articles/technical-issues/problems-connecting-online/
I’d especially recommend restarting your router and console/PC, using a wired connection if possible, and testing on a different network such as a mobile hotspot. Testing another connection can help us identify whether the issue is related to your current network or if the same thing happens regardless of the connection being used.
If it still happens after that, please let us know which platform you’re playing on and whether you see any error code.