Players to hold on to
Richarlison (Everton)
A three match ban, but one of them happens to be a cup fixture. So, only two matches on the bench. If you are not too concerned about team value and have another bench player to see you out, don't waste a transfer on him.
He looked in form before, and chances are he will get firing at the same pace when he gets back.
Pierre Emerick-Aubameyang (Arsenal)
It is hard to make a case for him after three blanks in three games, but two of those were against Manchester City and Chelsea. At the very least, give him one more week. He looks much better with Lacazette on the pitch, so pray that Emery has the sense to play them together.
His next five fixtures are extremely favorable, so it is only a matter of time before a striker of his quality gets up to speed.
Roberto Firmino (Liverpool)
He played in a much more advanced position than the first two games, and was more involved in things than he was in the first two. He could also have had a goal if not for Matt Ryan's splendid save.
If you have all three Liverpool forwards, and want to lose one of them for Robertson, then - and only then, consider the move.