Everton boss Rafa Benitez admits there's a lot of frustration after Richarlison was forced out of defeat at Aston Villa.
The Brazil international missed his side's 3-0 loss to Aston Villa on Saturday evening with a knee injury that is expected to keep him out until after the international break.
It's believed that a tackle from James Tarkowski in the second half of Monday's 3-1 win over Burnley at Goodison Park was the cause of the issue.
Benitez believes that there is not much more the club can do about the situation right now, but admits that referees need to be careful about what they allow in the future.
The Blues boss remarked: "I think that the only thing we can do is what we did, to say we're not happy with that, that's it.
"I think that they know. Maybe not on the day of the game, but afterwards it was obvious for everyone.
"It's something that we have to be very careful about, the kind of physical contact we allow this year.
"It's clear for everyone and hopefully we will not see more players injured for these kind of things."
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