Manchester United boss Jose Mourinho admits that it is more hard for his side to finish in the Premier League's top four following a 1-1 draw at home against Everton this evening.
England centre back Jagielka showed the predatory instincts of a goal poacher, latching on to Williams' header from a 22nd-minute corner and, with back to goal, holding off Marcos Rojo to conjure a shot that trickled between keeper David de Gea's legs.
United have now drawn nine home league games this season and 12 overall, although this particular point prevented seventh-placed Everton displacing them in fifth.
United manager Mourinho welcomed top scorer Ibrahimovic and Ander Herrera back from suspension, while Paul Pogba returned to the bench following a hamstring injury.
Earlier in the match, Phil Jagielka edged Everton ahead with a brilliantly improvised finish on 22 minutes before United piled on the pressure in the second half. United will be pleased with the comeback, but will be disappointed to have dropped points at home for the second time in a week.
It was another frustrating performance for the United manager, who has seen his team score just 21 league goals at Old Trafford this season, fewer than Burnley, Bournemouth, Leicester, Watford and West Brom.
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"For me it wasn't an offside", the Portuguese told BT Sport.
Many of United's recent setbacks have stemmed from its failure to turn possession and clear-cut chances into goals, but this wasn't one of those occasions.
"I think we deserved a little bit more". The one lack of judgement in the 92nd minute cost us.
Speaking after the match, Mourinho praised elements of Shaw's cameo performance, but also took credit for guiding his replacement left-back through the remainder of the match like some kind of oversized man-marionette. But it isn't a team that is from the start pressing, pressing, pressing.
Williams was sent off for turning away the shot with his hand, with Zlatan Ibrahimovic then stepping up to score the penalty and make it 1-1.
"It is a strong team, with really good players. We are close, but still we don't get the points that we need".
"So many times I was criticised for that".