Southgate had already ruled out the trio for the game against Wales this evening.
The Football Association (FA) launched an investigation after the trio allegedly broke coronavirus protocols by attending a party, which reportedly was held to celebrate Abraham's 23rd birthday and took place at the Chelsea striker's London flat on Saturday.
Coronavirus regulations in the United Kingdom currently prohibit meetings of more than six people in social situations, but British tabloid The Sun claimed approximately 20 people were at the party.