Sir Alex Ferguson admits he faces a quandary over whether to play David de Gea in goal against Chelsea While De Gea is likely to return for the confrontation at Stamford Bridge, Ferguson faces a selection quandary after the 21 year-old was heavily criticised for conceding the first goal in last weekend's FA Cup defeat to Liverpool. Third-choice goalkeeper Ben Amos, by contrast, was a revelation during the subsequent 2-0 Premier League victory over Stoke. "He has found it difficult coming into the English game," Ferguson said of De Gea. The first goal at Liverpool was a case in point. He was crowded out. Our own players created a problem - they didn't give him any room to manoeuvre. He would never have experienced that in Spain, so it was difficult for him. It is highlighted when you make a mistake at United. It can be exaggerated a little bit. But there are mistakes and he wants to address it himself. He will do so through maturity and the understanding of the English game. Ferguson has proven notoriously prickly on the subject of De Gea, rounding upon ESPN FOOTBALL interviewer Kelly Cates for highlighting "stupid little things" when she questioned the youngster's form. The United manager, also without Anders Lindegaard for the Chelsea game because of ankle ligament damage, explained: "It is harder when you are replacing someone like Edwin van der Sar or Peter Schmeichel. They are probably two of the greatest goalkeepers in European football over the last 40 years. I found it difficult to replace those players at the time. That's why we went for a young replacement. We felt that we should go for a young keeper who would develop and mature into the position, because the potential is there. When he turned his attentions to the game against Chelsea he predicted a tighter affair than when the sides met in September, when Andre Villas-Boas had introduced a new method of playing. "That was a crazy game," Ferguson said of the 3-1 win at Old Trafford in September. It could have been 20-18. I don't think it will be like that on Sunday. It will be much tighter.