Manager Ole Gunnar Solskjaer is currently under pressure to find a response to suffering five defeats from nine matches in all competitions.
However, despite United's poor run of form, Bailly and Van de Beek have not been provided with an opportunity to add something different to a struggling team.
Bailly has been limited to just one start in the EFL Cup this season, while Van de Beek has been given just five minutes of football in the Premier League.
According to The Sun, both players have enquired whether they will receive more minutes over the coming games.
The pair are said to have been left increasingly frustrated by the situation and want to know whether they feature in Solskjaer's plans going forward.
United face a triple header of Tottenham Hotspur, Atalanta BC and Manchester City before the next international break.