He said: "The FA Cup is always important, but when you are out of the Champions League it becomes a major trophy.
"Our fans are still thinking of winning silverware this season, so that means the FA Cup. It is a very important competition for us now.
"We must look at our squad and decide what we are going to do at Reading. We have more training sessions to see how they are, but because the competition has added importance now maybe we will not change too many players.
"We know we are facing Spurs eight days later, but that does give us more time to get players fit so we can field a strong team at Reading."