Palace will again be without top scorer Marouane Chamakh for Saturday's trip to Newcastle after the forward failed to recover from a hamstring injury. Dwight Gayle is a doubt for the trip to St James' Park after suffering an ankle problem in training.
Palace are just three points above the relegation zone and Pulis said: "Everybody understands where we are and that every game is a big game for us.
"We can't get ahead of ourselves. The players have performed consistently well over a period of time and we have got to continue that. What we have got to do is be a bit more ruthless in front of goal when we get chances.
"The great thing with Crystal Palace is that the expectations are not as great as some of the other clubs who have been in the Premier League for a long time. Everyone has marked us down as favourites to get relegated and finish bottom of the table, so the expectations are not as great as others."
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