Arsene Wenger has said that Arsenal's 2-1 defeat to Chelsea means they can afford no more slip ups in their faltering pursuit of a place in next season's Champions League.
His side now sit six points adrift of the four and are facing the very real possibility of failing to qualify for Europe.
Successive losses to Manchester City and Chelsea have left Arsenal floundering for fourth place, and Wenger admits their situation is hard to accept.
"The table is the table. We have lost two big games in the last week and that's very damaging for us," said the Gunners boss.
"It's very damaging for our position in the league and difficult to swallow.
"We cannot afford to drop points any more if we want to be in the top four. That's a concern."
Reading boss Brian McDermott praised a clinical second half performance which sent the Royals through to the last 16 of the FA Cup.
Brighton, Reading and Aldershot have some big matches this weekend in the Fourth Round of the FA Cup.
A football fan has put himself at the centre of a flurry of Twitter attention after betting his bank details on the outcome of a match.